[RFC PATCH 4/6] vfio: Add interface to iommu-map/unmap MSI pages

). As in these cases there can be chances that it overlaps with guest memory mapping. This patch add interface to iommu-map and iommu-unmap msi-pages at reserved iova chosen by userspace. Signed-off-by: Bharat Bhushan <bharat.bhus...@freescale.com> --- drivers/vfio/vfio.c

[RFC PATCH 0/6] vfio: Add interface to map MSI pages

msi-pages. This patch series does not provide interface to let user-space know how many minimum reserved iova regions are required on a given platform. This interface can be added once this patches series get reviewed and will be in acceptable state. Bharat Bhushan (6): vfio: Add interface

[RFC PATCH 3/6] vfio: Extend iommu-info to return MSIs automap state

to change the automatic mapping or not and this API provides this mechanism. Follow up patches will provide how to over-ride this. Signed-off-by: Bharat Bhushan <bharat.bhus...@freescale.com> --- drivers/vfio/vfio_iommu_type1.c | 32 include/uapi/linux/

[RFC PATCH 1/6] vfio: Add interface for add/del reserved iova region

for future extension where some other physical address can be mapped. Signed-off-by: Bharat Bhushan <bharat.bhus...@freescale.com> --- drivers/vfio/vfio_iommu_type1.c | 201 +++- include/uapi/linux/vfio.h | 43 + 2 files changed, 243 insertions

[RFC PATCH 2/6] iommu: Add interface to get msi-pages mapping attributes

-by: Bharat Bhushan <bharat.bhus...@freescale.com> --- drivers/iommu/arm-smmu.c| 3 +++ drivers/iommu/fsl_pamu_domain.c | 3 +++ drivers/iommu/iommu.c | 14 ++ include/linux/iommu.h | 9 - 4 files changed, 28 insertions(+), 1 deletion(-) diff

[RFC PATCH 5/6] vfio-pci: Create iommu mapping for msi interrupt

msi-iova as per iommu programming then reconfigure the pci device to use msi-iova as msi address. Signed-off-by: Bharat Bhushan <bharat.bhus...@freescale.com> --- drivers/vfio/pci/vfio_pci_intrs.c | 36 ++-- 1 file changed, 34 insertions(+), 2 deletions(-) diff

[RFC PATCH 6/6] arm-smmu: Allow to set iommu mapping for MSI

Finally ARM SMMU declare that iommu-mapping for MSI-pages are not set automatically and it should be set explicitly. Signed-off-by: Bharat Bhushan <bharat.bhus...@freescale.com> --- drivers/iommu/arm-smmu.c | 7 ++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/drivers

[PATCH v4] KVM: PPC: BOOKE: Emulate debug registers and exception

overwrite them. Signed-off-by: Bharat Bhushan bharat.bhus...@freescale.com --- v3-v4 - Clear only MRR on vcpu init arch/powerpc/include/asm/kvm_ppc.h | 3 + arch/powerpc/include/asm/reg_booke.h | 2 + arch/powerpc/kvm/booke.c | 42 +- arch/powerpc/kvm/booke_emulate.c

[PATCH] KVM: PPc: BOOKE: Add one_reg documentation of SPRG9 and DBSR

This was missed in respective one_reg implementation patch. Signed-off-by: Bharat Bhushan bharat.bhus...@freescale.com --- Documentation/virtual/kvm/api.txt | 2 ++ 1 file changed, 2 insertions(+) diff --git a/Documentation/virtual/kvm/api.txt b/Documentation/virtual/kvm/api.txt index a21ff22

[PATCH v4] KVM: PPC: BOOKE: Emulate debug registers and exception

overwrite them. Signed-off-by: Bharat Bhushan bharat.bhus...@freescale.com --- v3-v4 - Clear only MRR on vcpu init arch/powerpc/include/asm/kvm_ppc.h | 3 + arch/powerpc/include/asm/reg_booke.h | 2 + arch/powerpc/kvm/booke.c | 42 +- arch/powerpc/kvm/booke_emulate.c

[PATCH] KVM: PPc: BOOKE: Add one_reg documentation of SPRG9 and DBSR

This was missed in respective one_reg implementation patch. Signed-off-by: Bharat Bhushan bharat.bhus...@freescale.com --- Documentation/virtual/kvm/api.txt | 2 ++ 1 file changed, 2 insertions(+) diff --git a/Documentation/virtual/kvm/api.txt b/Documentation/virtual/kvm/api.txt index a21ff22

[PATCH 1/7 v3] KVM: PPC: BOOKE: allow debug interrupt at debug level

level to be used. Signed-off-by: Bharat Bhushan bharat.bhus...@freescale.com --- v2-v3 - No change arch/powerpc/kvm/booke.c | 6 +- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/arch/powerpc/kvm/booke.c b/arch/powerpc/kvm/booke.c index b4c89fa..322da7d 100644 --- a/arch

[PATCH 2/7 v3] KVM: PPC: BOOKE : Emulate rfdi instruction

This patch adds rfdi instruction emulation which is required for guest debug hander on BOOKE-HV Signed-off-by: Bharat Bhushan bharat.bhus...@freescale.com --- v2-v3 - No change arch/powerpc/include/asm/kvm_host.h | 1 + arch/powerpc/kvm/booke_emulate.c| 13 + 2 files changed

[PATCH 0/7 v3] Guest debug emulation

This patchset adds debug register and interrupt emulation support for guest, which enables running gdb/kgdb etc in guest. v2-v3 - Added One-reg interface for DBSR - removed arch-shadow_dbg_reg - Addressed some more comments on v2 (detail in individual patch) Bharat Bhushan (7): KVM: PPC

[PATCH 3/7 v3] KVM: PPC: BOOKE: Allow guest to change MSR_DE

-off-by: Bharat Bhushan bharat.bhus...@freescale.com --- v2-v3 - No change arch/powerpc/kvm/e500mc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/powerpc/kvm/e500mc.c b/arch/powerpc/kvm/e500mc.c index 164bad2..000cf82 100644 --- a/arch/powerpc/kvm/e500mc.c +++ b/arch

[PATCH 7/7 v3] KVM: PPC: BOOKE: Emulate debug registers and exception

overwrite them. Signed-off-by: Bharat Bhushan bharat.bhus...@freescale.com --- v2-v3 - Corrected no debug interrupt if only DBSR_IDE event set - DBSR_MRR cleanup on kvm init - no arch-shadow_dbg_reg as per previous patch arch/powerpc/include/asm/kvm_ppc.h | 3 + arch/powerpc/include/asm

[PATCH 4/7 v3] KVM: PPC: BOOKE: Clear guest dbsr in userspace exit KVM_EXIT_DEBUG

DBSR in KVM_EXIT_DEBUG handling then clearing dbsr in kernel looks simple as this avoid doing SET_SREGS/set_one_reg() to clear DBSR Signed-off-by: Bharat Bhushan bharat.bhus...@freescale.com --- v2-v3 - Small comment in code, patch description have sufficient detail arch/powerpc/kvm/booke.c | 2

[PATCH 5/7 v3] KVM: PPC: BOOKE: Guest and hardware visible debug registers are same

Guest visible debug register and hardware visible debug registers are same, so ther is no need to have arch-shadow_dbg_reg, instead use arch-dbg_reg. Signed-off-by: Bharat Bhushan bharat.bhus...@freescale.com --- v2-v3 - New Patch ( As per comment we are now using arch-dbg_reg only) arch

[PATCH 6/7 v3] KVM: PPC: BOOKE: Add one reg interface for DBSR

Signed-off-by: Bharat Bhushan bharat.bhus...@freescale.com --- v2-v3 - New patch arch/powerpc/include/uapi/asm/kvm.h | 1 + arch/powerpc/kvm/booke.c| 6 ++ 2 files changed, 7 insertions(+) diff --git a/arch/powerpc/include/uapi/asm/kvm.h b/arch/powerpc/include/uapi/asm/kvm.h

[PATCH 0/7 v3] Guest debug emulation

This patchset adds debug register and interrupt emulation support for guest, which enables running gdb/kgdb etc in guest. v2-v3 - Added One-reg interface for DBSR - removed arch-shadow_dbg_reg - Addressed some more comments on v2 (detail in individual patch) Bharat Bhushan (7): KVM: PPC

[PATCH 2/7 v3] KVM: PPC: BOOKE : Emulate rfdi instruction

This patch adds rfdi instruction emulation which is required for guest debug hander on BOOKE-HV Signed-off-by: Bharat Bhushan bharat.bhus...@freescale.com --- v2-v3 - No change arch/powerpc/include/asm/kvm_host.h | 1 + arch/powerpc/kvm/booke_emulate.c| 13 + 2 files changed

[PATCH 1/7 v3] KVM: PPC: BOOKE: allow debug interrupt at debug level

level to be used. Signed-off-by: Bharat Bhushan bharat.bhus...@freescale.com --- v2-v3 - No change arch/powerpc/kvm/booke.c | 6 +- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/arch/powerpc/kvm/booke.c b/arch/powerpc/kvm/booke.c index b4c89fa..322da7d 100644 --- a/arch

[PATCH 4/7 v3] KVM: PPC: BOOKE: Clear guest dbsr in userspace exit KVM_EXIT_DEBUG

DBSR in KVM_EXIT_DEBUG handling then clearing dbsr in kernel looks simple as this avoid doing SET_SREGS/set_one_reg() to clear DBSR Signed-off-by: Bharat Bhushan bharat.bhus...@freescale.com --- v2-v3 - Small comment in code, patch description have sufficient detail arch/powerpc/kvm/booke.c | 2

[PATCH 7/7 v3] KVM: PPC: BOOKE: Emulate debug registers and exception

overwrite them. Signed-off-by: Bharat Bhushan bharat.bhus...@freescale.com --- v2-v3 - Corrected no debug interrupt if only DBSR_IDE event set - DBSR_MRR cleanup on kvm init - no arch-shadow_dbg_reg as per previous patch arch/powerpc/include/asm/kvm_ppc.h | 3 + arch/powerpc/include/asm

[PATCH 5/7 v3] KVM: PPC: BOOKE: Guest and hardware visible debug registers are same

Guest visible debug register and hardware visible debug registers are same, so ther is no need to have arch-shadow_dbg_reg, instead use arch-dbg_reg. Signed-off-by: Bharat Bhushan bharat.bhus...@freescale.com --- v2-v3 - New Patch ( As per comment we are now using arch-dbg_reg only) arch

[PATCH 6/7 v3] KVM: PPC: BOOKE: Add one reg interface for DBSR

Signed-off-by: Bharat Bhushan bharat.bhus...@freescale.com --- v2-v3 - New patch arch/powerpc/include/uapi/asm/kvm.h | 1 + arch/powerpc/kvm/booke.c| 6 ++ 2 files changed, 7 insertions(+) diff --git a/arch/powerpc/include/uapi/asm/kvm.h b/arch/powerpc/include/uapi/asm/kvm.h

[PATCH 4/5] KVM: PPC: BOOKE: Clear guest dbsr in userspace exit KVM_EXIT_DEBUG

DBSR in KVM_EXIT_DEBUG handling then clearing dbsr in kernel looks simple as this avoid doing SET_SREGS/set_one_reg() to clear DBSR Signed-off-by: Bharat Bhushan bharat.bhus...@freescale.com --- arch/powerpc/kvm/booke.c | 11 +++ 1 file changed, 11 insertions(+) diff --git a/arch/powerpc

[PATCH 2/5] KVM: PPC: BOOKE : Emulate rfdi instruction

This patch adds rfdi instruction emulation which is required for guest debug hander on BOOKE-HV Signed-off-by: Bharat Bhushan bharat.bhus...@freescale.com --- arch/powerpc/include/asm/kvm_host.h | 1 + arch/powerpc/kvm/booke_emulate.c| 13 + 2 files changed, 14 insertions

[PATCH 3/5] KVM: PPC: BOOKE: Allow guest to change MSR_DE

-off-by: Bharat Bhushan bharat.bhus...@freescale.com --- arch/powerpc/kvm/e500mc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/powerpc/kvm/e500mc.c b/arch/powerpc/kvm/e500mc.c index 164bad2..000cf82 100644 --- a/arch/powerpc/kvm/e500mc.c +++ b/arch/powerpc/kvm/e500mc.c

[PATCH 5/5] KVM: PPC: BOOKE: Emulate debug registers and exception

overwrite them. Signed-off-by: Bharat Bhushan bharat.bhus...@freescale.com --- arch/powerpc/include/asm/kvm_ppc.h | 3 + arch/powerpc/include/asm/reg_booke.h | 2 + arch/powerpc/kvm/booke.c | 35 +++- arch/powerpc/kvm/booke_emulate.c | 157

[PATCH 1/5] KVM: PPC: BOOKE: allow debug interrupt at debug level

level to be used. Signed-off-by: Bharat Bhushan bharat.bhus...@freescale.com --- arch/powerpc/kvm/booke.c | 6 +- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/arch/powerpc/kvm/booke.c b/arch/powerpc/kvm/booke.c index b4c89fa..322da7d 100644 --- a/arch/powerpc/kvm/booke.c +++ b

[PATCH 3/5 v2] KVM: PPC: BOOKE: Allow guest to change MSR_DE

-off-by: Bharat Bhushan bharat.bhus...@freescale.com --- v1-v2 - No Change arch/powerpc/kvm/e500mc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/powerpc/kvm/e500mc.c b/arch/powerpc/kvm/e500mc.c index 164bad2..000cf82 100644 --- a/arch/powerpc/kvm/e500mc.c +++ b/arch

[PATCH 0/5 v2] Guest debug emulation

This patchset adds debug register and interrupt emulation support for guest, which enables running gdb/kgdb etc in guest. Bharat Bhushan (5): KVM: PPC: BOOKE: allow debug interrupt at debug level KVM: PPC: BOOKE : Emulate rfdi instruction KVM: PPC: BOOKE: Allow guest to change MSR_DE KVM

[PATCH 2/5 v2] KVM: PPC: BOOKE : Emulate rfdi instruction

This patch adds rfdi instruction emulation which is required for guest debug hander on BOOKE-HV Signed-off-by: Bharat Bhushan bharat.bhus...@freescale.com --- v1-v2 -msr update based on guest_debug done under _set_msr(); so removed same check here arch/powerpc/include/asm/kvm_host.h | 1

[PATCH 5/5 v2] KVM: PPC: BOOKE: Emulate debug registers and exception

overwrite them. Signed-off-by: Bharat Bhushan bharat.bhus...@freescale.com --- v1-v2 - Clear DBCR0_EDM when userspace release debug resource - change order of debug register and update in h/w register - no debug interrupt on MRR/IDE debug event arch/powerpc/include/asm/kvm_ppc.h | 3 + arch

[PATCH 1/5 v2] KVM: PPC: BOOKE: allow debug interrupt at debug level

level to be used. Signed-off-by: Bharat Bhushan bharat.bhus...@freescale.com --- v1-v2 - No change arch/powerpc/kvm/booke.c | 6 +- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/arch/powerpc/kvm/booke.c b/arch/powerpc/kvm/booke.c index b4c89fa..322da7d 100644 --- a/arch

[PATCH 4/5 v2] KVM: PPC: BOOKE: Clear guest dbsr in userspace exit KVM_EXIT_DEBUG

DBSR in KVM_EXIT_DEBUG handling then clearing dbsr in kernel looks simple as this avoid doing SET_SREGS/set_one_reg() to clear DBSR Signed-off-by: Bharat Bhushan bharat.bhus...@freescale.com --- v1-v2 - New patch (separated from guest debug emulation - Added description arch/powerpc/kvm

[PATCH 4/5] KVM: PPC: BOOKE: Clear guest dbsr in userspace exit KVM_EXIT_DEBUG

DBSR in KVM_EXIT_DEBUG handling then clearing dbsr in kernel looks simple as this avoid doing SET_SREGS/set_one_reg() to clear DBSR Signed-off-by: Bharat Bhushan bharat.bhus...@freescale.com --- arch/powerpc/kvm/booke.c | 11 +++ 1 file changed, 11 insertions(+) diff --git a/arch/powerpc

[PATCH 2/5] KVM: PPC: BOOKE : Emulate rfdi instruction

This patch adds rfdi instruction emulation which is required for guest debug hander on BOOKE-HV Signed-off-by: Bharat Bhushan bharat.bhus...@freescale.com --- arch/powerpc/include/asm/kvm_host.h | 1 + arch/powerpc/kvm/booke_emulate.c| 13 + 2 files changed, 14 insertions

[PATCH 1/5] KVM: PPC: BOOKE: allow debug interrupt at debug level

level to be used. Signed-off-by: Bharat Bhushan bharat.bhus...@freescale.com --- arch/powerpc/kvm/booke.c | 6 +- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/arch/powerpc/kvm/booke.c b/arch/powerpc/kvm/booke.c index b4c89fa..322da7d 100644 --- a/arch/powerpc/kvm/booke.c +++ b

[PATCH 5/5] KVM: PPC: BOOKE: Emulate debug registers and exception

overwrite them. Signed-off-by: Bharat Bhushan bharat.bhus...@freescale.com --- arch/powerpc/include/asm/kvm_ppc.h | 3 + arch/powerpc/include/asm/reg_booke.h | 2 + arch/powerpc/kvm/booke.c | 35 +++- arch/powerpc/kvm/booke_emulate.c | 157

[PATCH 3/5] KVM: PPC: BOOKE: Allow guest to change MSR_DE

-off-by: Bharat Bhushan bharat.bhus...@freescale.com --- arch/powerpc/kvm/e500mc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/powerpc/kvm/e500mc.c b/arch/powerpc/kvm/e500mc.c index 164bad2..000cf82 100644 --- a/arch/powerpc/kvm/e500mc.c +++ b/arch/powerpc/kvm/e500mc.c

[PATCH 5/5 v2] KVM: PPC: BOOKE: Emulate debug registers and exception

overwrite them. Signed-off-by: Bharat Bhushan bharat.bhus...@freescale.com --- v1-v2 - Clear DBCR0_EDM when userspace release debug resource - change order of debug register and update in h/w register - no debug interrupt on MRR/IDE debug event arch/powerpc/include/asm/kvm_ppc.h | 3 + arch

[PATCH 0/5 v2] Guest debug emulation

This patchset adds debug register and interrupt emulation support for guest, which enables running gdb/kgdb etc in guest. Bharat Bhushan (5): KVM: PPC: BOOKE: allow debug interrupt at debug level KVM: PPC: BOOKE : Emulate rfdi instruction KVM: PPC: BOOKE: Allow guest to change MSR_DE KVM

[PATCH 2/5 v2] KVM: PPC: BOOKE : Emulate rfdi instruction

This patch adds rfdi instruction emulation which is required for guest debug hander on BOOKE-HV Signed-off-by: Bharat Bhushan bharat.bhus...@freescale.com --- v1-v2 -msr update based on guest_debug done under _set_msr(); so removed same check here arch/powerpc/include/asm/kvm_host.h | 1

[PATCH 1/5 v2] KVM: PPC: BOOKE: allow debug interrupt at debug level

level to be used. Signed-off-by: Bharat Bhushan bharat.bhus...@freescale.com --- v1-v2 - No change arch/powerpc/kvm/booke.c | 6 +- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/arch/powerpc/kvm/booke.c b/arch/powerpc/kvm/booke.c index b4c89fa..322da7d 100644 --- a/arch

[PATCH 4/5 v2] KVM: PPC: BOOKE: Clear guest dbsr in userspace exit KVM_EXIT_DEBUG

DBSR in KVM_EXIT_DEBUG handling then clearing dbsr in kernel looks simple as this avoid doing SET_SREGS/set_one_reg() to clear DBSR Signed-off-by: Bharat Bhushan bharat.bhus...@freescale.com --- v1-v2 - New patch (separated from guest debug emulation - Added description arch/powerpc/kvm

[PATCH] KVM: PPC: BOOKEHV: rename e500hv_spr to bookehv_spr

This are not specific to e500hv but applicable for bookehv (As per comment from Scott Wood on my patch kvm: ppc: bookehv: Added wrapper macros for shadow registers) Signed-off-by: Bharat Bhushan bharat.bhus...@freescale.com --- arch/powerpc/include/asm/kvm_ppc.h | 20 ++-- 1 file

[PATCH] KVM: PPC: BOOKEHV: rename e500hv_spr to bookehv_spr

This are not specific to e500hv but applicable for bookehv (As per comment from Scott Wood on my patch kvm: ppc: bookehv: Added wrapper macros for shadow registers) Signed-off-by: Bharat Bhushan bharat.bhus...@freescale.com --- arch/powerpc/include/asm/kvm_ppc.h | 20 ++-- 1 file

[PATCH] KVM: PPC: Remove comment saying SPRG1 is used for vcpu pointer

to using SPRG1 for VCPU pointer. Signed-off-by: Bharat Bhushan bharat.bhus...@freescale.com --- arch/powerpc/include/asm/reg.h | 3 --- 1 file changed, 3 deletions(-) diff --git a/arch/powerpc/include/asm/reg.h b/arch/powerpc/include/asm/reg.h index 1f34ef7..d46d92b 100644 --- a/arch/powerpc/include/asm

[PATCH] KVM: PPC: Remove comment saying SPRG1 is used for vcpu pointer

to using SPRG1 for VCPU pointer. Signed-off-by: Bharat Bhushan bharat.bhus...@freescale.com --- arch/powerpc/include/asm/reg.h | 3 --- 1 file changed, 3 deletions(-) diff --git a/arch/powerpc/include/asm/reg.h b/arch/powerpc/include/asm/reg.h index 1f34ef7..d46d92b 100644 --- a/arch/powerpc/include/asm

[PATCH] KVM: PPC: Booke-hv: Add one reg interface for SPRG9

We now support SPRG9 for guest, so also add a one reg interface for same Note: Changes are in bookehv code only as we do not have SPRG9 on booke-pr. Signed-off-by: Bharat Bhushan bharat.bhus...@freescale.com --- arch/powerpc/include/uapi/asm/kvm.h | 1 + arch/powerpc/kvm/e500mc.c | 22

[PATCH] KVM: PPC: Booke-hv: Add one reg interface for SPRG9

We now support SPRG9 for guest, so also add a one reg interface for same Note: Changes are in bookehv code only as we do not have SPRG9 on booke-pr. Signed-off-by: Bharat Bhushan bharat.bhus...@freescale.com --- arch/powerpc/include/uapi/asm/kvm.h | 1 + arch/powerpc/kvm/e500mc.c | 22

[PATCH v2] kvm: ppc: bookehv: Save restore SPRN_SPRG9 on guest entry exit

SPRN_SPRG is used by debug interrupt handler, so this is required for debug support. Signed-off-by: Bharat Bhushan bharat.bhus...@freescale.com --- v1-v2 - sprng9 is 64bit, not 32bit arch/powerpc/include/asm/kvm_host.h | 1 + arch/powerpc/kernel/asm-offsets.c | 1 + arch/powerpc/kvm

[PATCH v2] kvm: ppc: bookehv: Save restore SPRN_SPRG9 on guest entry exit

SPRN_SPRG is used by debug interrupt handler, so this is required for debug support. Signed-off-by: Bharat Bhushan bharat.bhus...@freescale.com --- v1-v2 - sprng9 is 64bit, not 32bit arch/powerpc/include/asm/kvm_host.h | 1 + arch/powerpc/kernel/asm-offsets.c | 1 + arch/powerpc/kvm

[PATCH 2/6 v2] kvm: ppc: booke: Use the shared struct helpers of SRR0 and SRR1

Use kvmppc_set_srr0/srr1() and kvmppc_get_srr0/srr1() helper functions Signed-off-by: Bharat Bhushan bharat.bhus...@freescale.com --- arch/powerpc/kvm/booke.c | 17 ++--- 1 file changed, 6 insertions(+), 11 deletions(-) diff --git a/arch/powerpc/kvm/booke.c b/arch/powerpc/kvm

[PATCH 1/6 v2] kvm: ppc: bookehv: Added wrapper macros for shadow registers

There are shadow registers like, GSPRG[0-3], GSRR0, GSRR1 etc on BOOKE-HV and these shadow registers are guest accessible. So these shadow registers needs to be updated on BOOKE-HV. This patch adds new macro for get/set helper of shadow register . Signed-off-by: Bharat Bhushan bharat.bhus

[PATCH 4/6 v2] kvm: ppc: booke: Add shared struct helpers of SPRN_ESR

Add and use kvmppc_set_esr() and kvmppc_get_esr() helper functions Signed-off-by: Bharat Bhushan bharat.bhus...@freescale.com --- arch/powerpc/include/asm/kvm_ppc.h | 1 + arch/powerpc/kvm/booke.c | 24 +++- 2 files changed, 4 insertions(+), 21 deletions(-) diff

[PATCH 3/6 v2] kvm: ppc: booke: Use the shared struct helpers of SPRN_DEAR

Uses kvmppc_set_dar() and kvmppc_get_dar() helper functions Signed-off-by: Bharat Bhushan bharat.bhus...@freescale.com --- arch/powerpc/kvm/booke.c | 24 +++- 1 file changed, 3 insertions(+), 21 deletions(-) diff --git a/arch/powerpc/kvm/booke.c b/arch/powerpc/kvm/booke.c

[PATCH 5/6 v2] kvm: ppc: booke: Use the shared struct helpers for SPRN_SPRG0-7

Use kvmppc_set_sprg[0-7]() and kvmppc_get_sprg[0-7]() helper functions Signed-off-by: Bharat Bhushan bharat.bhus...@freescale.com --- arch/powerpc/kvm/booke.c | 32 arch/powerpc/kvm/booke_emulate.c | 8 2 files changed, 20 insertions(+), 20

[PATCH 6/6 v2] kvm: ppc: Add SPRN_EPR get helper function

kvmppc_set_epr() is already defined in asm/kvm_ppc.h, So rename and move get_epr helper function to same file. Signed-off-by: Bharat Bhushan bharat.bhus...@freescale.com --- v1-v2 - vcpu-arch.epr under CONFIG_BOOKE arch/powerpc/include/asm/kvm_ppc.h | 10 ++ arch/powerpc/kvm/booke.c

[PATCH 3/6 v2] kvm: ppc: booke: Use the shared struct helpers of SPRN_DEAR

Uses kvmppc_set_dar() and kvmppc_get_dar() helper functions Signed-off-by: Bharat Bhushan bharat.bhus...@freescale.com --- arch/powerpc/kvm/booke.c | 24 +++- 1 file changed, 3 insertions(+), 21 deletions(-) diff --git a/arch/powerpc/kvm/booke.c b/arch/powerpc/kvm/booke.c

[PATCH 2/6 v2] kvm: ppc: booke: Use the shared struct helpers of SRR0 and SRR1

Use kvmppc_set_srr0/srr1() and kvmppc_get_srr0/srr1() helper functions Signed-off-by: Bharat Bhushan bharat.bhus...@freescale.com --- arch/powerpc/kvm/booke.c | 17 ++--- 1 file changed, 6 insertions(+), 11 deletions(-) diff --git a/arch/powerpc/kvm/booke.c b/arch/powerpc/kvm

[PATCH 4/6 v2] kvm: ppc: booke: Add shared struct helpers of SPRN_ESR

Add and use kvmppc_set_esr() and kvmppc_get_esr() helper functions Signed-off-by: Bharat Bhushan bharat.bhus...@freescale.com --- arch/powerpc/include/asm/kvm_ppc.h | 1 + arch/powerpc/kvm/booke.c | 24 +++- 2 files changed, 4 insertions(+), 21 deletions(-) diff

[PATCH 1/6 v2] kvm: ppc: bookehv: Added wrapper macros for shadow registers

There are shadow registers like, GSPRG[0-3], GSRR0, GSRR1 etc on BOOKE-HV and these shadow registers are guest accessible. So these shadow registers needs to be updated on BOOKE-HV. This patch adds new macro for get/set helper of shadow register . Signed-off-by: Bharat Bhushan bharat.bhus

[PATCH 5/6 v2] kvm: ppc: booke: Use the shared struct helpers for SPRN_SPRG0-7

Use kvmppc_set_sprg[0-7]() and kvmppc_get_sprg[0-7]() helper functions Signed-off-by: Bharat Bhushan bharat.bhus...@freescale.com --- arch/powerpc/kvm/booke.c | 32 arch/powerpc/kvm/booke_emulate.c | 8 2 files changed, 20 insertions(+), 20

[PATCH 6/6 v2] kvm: ppc: Add SPRN_EPR get helper function

kvmppc_set_epr() is already defined in asm/kvm_ppc.h, So rename and move get_epr helper function to same file. Signed-off-by: Bharat Bhushan bharat.bhus...@freescale.com --- v1-v2 - vcpu-arch.epr under CONFIG_BOOKE arch/powerpc/include/asm/kvm_ppc.h | 10 ++ arch/powerpc/kvm/booke.c

[PATCH] kvm: ppc: booke: Restore SPRG3 when entering guest

SPRG3 is guest accessible and SPRG3 can be clobbered by host or another guest, So this need to be restored when loading guest state. Signed-off-by: Bharat Bhushan bharat.bhus...@freescale.com --- arch/powerpc/kvm/booke_interrupts.S | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch

[PATCH] kvm: ppc: booke: Restore SPRG3 when entering guest

SPRG3 is guest accessible and SPRG3 can be clobbered by host or another guest, So this need to be restored when loading guest state. Signed-off-by: Bharat Bhushan bharat.bhus...@freescale.com --- arch/powerpc/kvm/booke_interrupts.S | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch

[PATCH 1/6] kvm: ppc: booke: Enhance wrapper functions to handle shadow registers

There are shadow registers like, GSPRG[0-3], GSRR0, GSRR1 etc on BOOKE-HV and these shadow registers are guest accessible. So these shadow registers needs to be updated on BOOKE-HV. This patch enhance the existing macros to handle shadow registers. Signed-off-by: Bharat Bhushan bharat.bhus

[PATCH 6/6] kvm: ppc: Add SPRN_SPR get helper function

kvmppc_set_epr() is already defined in asm/kvm_ppc.h, So rename and move get_epr helper function to same file. Signed-off-by: Bharat Bhushan bharat.bhus...@freescale.com --- arch/powerpc/include/asm/kvm_ppc.h | 9 + arch/powerpc/kvm/booke.c | 11 +-- 2 files changed

[PATCH 4/6] kvm: ppc: booke: Add shared struct helpers of SPRN_ESR

Add and use kvmppc_set_esr() and kvmppc_get_esr() helper functions Signed-off-by: Bharat Bhushan bharat.bhus...@freescale.com --- arch/powerpc/include/asm/kvm_ppc.h | 1 + arch/powerpc/kvm/booke.c | 24 +++- 2 files changed, 4 insertions(+), 21 deletions(-) diff

[PATCH 2/6] kvm: ppc: booke: Use the shared struct helpers of SRR0 and SRR1

Use kvmppc_set_srr0/srr1() and kvmppc_get_srr0/srr1() helper functions Signed-off-by: Bharat Bhushan bharat.bhus...@freescale.com --- arch/powerpc/kvm/booke.c | 17 ++--- 1 file changed, 6 insertions(+), 11 deletions(-) diff --git a/arch/powerpc/kvm/booke.c b/arch/powerpc/kvm

[PATCH 5/6] kvm: ppc: booke: Use the shared struct helpers for SPRN_SPRG0-7

Use kvmppc_set_sprg[0-7]() and kvmppc_get_sprg[0-7]() helper functions Signed-off-by: Bharat Bhushan bharat.bhus...@freescale.com --- arch/powerpc/kvm/booke.c | 32 arch/powerpc/kvm/booke_emulate.c | 8 2 files changed, 20 insertions(+), 20

[PATCH 3/6] kvm: ppc: booke: Use the shared struct helpers of SPRN_DEAR

Uses kvmppc_set_dar() and kvmppc_get_dar() helper functions Signed-off-by: Bharat Bhushan bharat.bhus...@freescale.com --- arch/powerpc/kvm/booke.c | 24 +++- 1 file changed, 3 insertions(+), 21 deletions(-) diff --git a/arch/powerpc/kvm/booke.c b/arch/powerpc/kvm/booke.c

[PATCH] kvm: ppc: bookehv: Save restore SPRN_SPRG9 on guest entry exit

SPRN_SPRG is used by debug interrupt handler, so this is required for debug support. Signed-off-by: Bharat Bhushan bharat.bhus...@freescale.com --- arch/powerpc/include/asm/kvm_host.h | 1 + arch/powerpc/kernel/asm-offsets.c | 1 + arch/powerpc/kvm/bookehv_interrupts.S | 4 3 files

[PATCH 4/6] kvm: ppc: booke: Add shared struct helpers of SPRN_ESR

Add and use kvmppc_set_esr() and kvmppc_get_esr() helper functions Signed-off-by: Bharat Bhushan bharat.bhus...@freescale.com --- arch/powerpc/include/asm/kvm_ppc.h | 1 + arch/powerpc/kvm/booke.c | 24 +++- 2 files changed, 4 insertions(+), 21 deletions(-) diff

[PATCH 2/6] kvm: ppc: booke: Use the shared struct helpers of SRR0 and SRR1

Use kvmppc_set_srr0/srr1() and kvmppc_get_srr0/srr1() helper functions Signed-off-by: Bharat Bhushan bharat.bhus...@freescale.com --- arch/powerpc/kvm/booke.c | 17 ++--- 1 file changed, 6 insertions(+), 11 deletions(-) diff --git a/arch/powerpc/kvm/booke.c b/arch/powerpc/kvm

[PATCH 3/6] kvm: ppc: booke: Use the shared struct helpers of SPRN_DEAR

Uses kvmppc_set_dar() and kvmppc_get_dar() helper functions Signed-off-by: Bharat Bhushan bharat.bhus...@freescale.com --- arch/powerpc/kvm/booke.c | 24 +++- 1 file changed, 3 insertions(+), 21 deletions(-) diff --git a/arch/powerpc/kvm/booke.c b/arch/powerpc/kvm/booke.c

[PATCH] kvm: ppc: bookehv: Save restore SPRN_SPRG9 on guest entry exit

SPRN_SPRG is used by debug interrupt handler, so this is required for debug support. Signed-off-by: Bharat Bhushan bharat.bhus...@freescale.com --- arch/powerpc/include/asm/kvm_host.h | 1 + arch/powerpc/kernel/asm-offsets.c | 1 + arch/powerpc/kvm/bookehv_interrupts.S | 4 3 files

[PATCH] kvm: ppc: bookehv: Sync srr0/1 into GSRR0/1

This patch adds missing sync of SRR0/1 in set SREGS interface. Signed-off-by: Bharat Bhushan bharat.bhus...@freescale.com --- arch/powerpc/kvm/booke.c | 4 1 file changed, 4 insertions(+) diff --git a/arch/powerpc/kvm/booke.c b/arch/powerpc/kvm/booke.c index c2471ed..368b48e 100644

[PATCH 2/6] KVM: PPC: BOOKE: Force MSR_DE in rfci if guest is under debug

When userspace (QEMU) is using the debug resource to debug guest then we want MSR_DE to be always set. This patch adds missing MSR_DE setting in rfci instruction. Signed-off-by: Bharat Bhushan bharat.bhus...@freescale.com --- arch/powerpc/kvm/booke_emulate.c | 6 +- 1 file changed, 5

[PATCH 1/6] KVM: PPC: BOOKE: No need to set DBCR0_EDM in guest visible register

This is not used and even I do not remember why this was added in first place. Signed-off-by: Bharat Bhushan bharat.bhus...@freescale.com --- arch/powerpc/kvm/booke.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/arch/powerpc/kvm/booke.c b/arch/powerpc/kvm/booke.c index ab62109..a5ee42c

[PATCH 5/6] KVM: PPC: BOOKE: Allow guest to change MSR_DE

guest to control MSR_DE. Signed-off-by: Bharat Bhushan bharat.bhus...@freescale.com --- arch/powerpc/kvm/e500mc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/powerpc/kvm/e500mc.c b/arch/powerpc/kvm/e500mc.c index 690499d..bd0a2bd 100644 --- a/arch/powerpc/kvm/e500mc.c

[PATCH 3/6] KVM: PPC: BOOKE: allow debug interrupt at debug level

level to be used. Signed-off-by: Bharat Bhushan bharat.bhus...@freescale.com --- arch/powerpc/kvm/booke.c | 6 +- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/arch/powerpc/kvm/booke.c b/arch/powerpc/kvm/booke.c index a5ee42c..fadfe76 100644 --- a/arch/powerpc/kvm/booke.c +++ b

[PATCH 0/6] Guest debug emulation

This patchset adds debug register and interrupt emulation support for guest, which enables running gdb/kgdb etc in guest. This also have couple of bux fixes Bharat Bhushan (6): KVM: PPC: BOOKE: No need to set DBCR0_EDM in guest visible register KVM: PPC: BOOKE: Force MSR_DE in rfci if guest

[PATCH 6/6] KVM: PPC: BOOKE: Emulate debug registers and exception

overwrite them. Signed-off-by: Bharat Bhushan bharat.bhus...@freescale.com --- Hi Alex, I thought of having some print in register emulation if QEMU is using debug resource, Also when QEMU overwrites guest written values but that looks excessive. If I uses some variable which get set when guest starts

[PATCH 4/6] KVM: PPC: BOOKE : Emulate rfdi instruction

This patch adds rfdi instruction emulation which is required for guest debug hander on BOOKE-HV Signed-off-by: Bharat Bhushan bharat.bhus...@freescale.com --- arch/powerpc/include/asm/kvm_host.h | 1 + arch/powerpc/kvm/booke_emulate.c| 17 + 2 files changed, 18 insertions

[PATCH 2/6] KVM: PPC: BOOKE: Force MSR_DE in rfci if guest is under debug

When userspace (QEMU) is using the debug resource to debug guest then we want MSR_DE to be always set. This patch adds missing MSR_DE setting in rfci instruction. Signed-off-by: Bharat Bhushan bharat.bhus...@freescale.com --- arch/powerpc/kvm/booke_emulate.c | 6 +- 1 file changed, 5

[PATCH 6/6] KVM: PPC: BOOKE: Emulate debug registers and exception

overwrite them. Signed-off-by: Bharat Bhushan bharat.bhus...@freescale.com --- Hi Alex, I thought of having some print in register emulation if QEMU is using debug resource, Also when QEMU overwrites guest written values but that looks excessive. If I uses some variable which get set when guest starts

[PATCH 1/6] KVM: PPC: BOOKE: No need to set DBCR0_EDM in guest visible register

This is not used and even I do not remember why this was added in first place. Signed-off-by: Bharat Bhushan bharat.bhus...@freescale.com --- arch/powerpc/kvm/booke.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/arch/powerpc/kvm/booke.c b/arch/powerpc/kvm/booke.c index ab62109..a5ee42c

[PATCH 4/6] KVM: PPC: BOOKE : Emulate rfdi instruction

This patch adds rfdi instruction emulation which is required for guest debug hander on BOOKE-HV Signed-off-by: Bharat Bhushan bharat.bhus...@freescale.com --- arch/powerpc/include/asm/kvm_host.h | 1 + arch/powerpc/kvm/booke_emulate.c| 17 + 2 files changed, 18 insertions

[PATCH 0/6] Guest debug emulation

This patchset adds debug register and interrupt emulation support for guest, which enables running gdb/kgdb etc in guest. This also have couple of bux fixes Bharat Bhushan (6): KVM: PPC: BOOKE: No need to set DBCR0_EDM in guest visible register KVM: PPC: BOOKE: Force MSR_DE in rfci if guest

[PATCH 5/6] KVM: PPC: BOOKE: Allow guest to change MSR_DE

guest to control MSR_DE. Signed-off-by: Bharat Bhushan bharat.bhus...@freescale.com --- arch/powerpc/kvm/e500mc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/powerpc/kvm/e500mc.c b/arch/powerpc/kvm/e500mc.c index 690499d..bd0a2bd 100644 --- a/arch/powerpc/kvm/e500mc.c

[PATCH 3/6] KVM: PPC: BOOKE: allow debug interrupt at debug level

level to be used. Signed-off-by: Bharat Bhushan bharat.bhus...@freescale.com --- arch/powerpc/kvm/booke.c | 6 +- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/arch/powerpc/kvm/booke.c b/arch/powerpc/kvm/booke.c index a5ee42c..fadfe76 100644 --- a/arch/powerpc/kvm/booke.c +++ b

[PATCH 1/2] KVM: powerpc/booke: allow debug interrupt at debug level

level to be used. Signed-off-by: Bharat Bhushan bharat.bhus...@freescale.com --- arch/powerpc/kvm/booke.c | 6 +- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/arch/powerpc/kvm/booke.c b/arch/powerpc/kvm/booke.c index ab62109..bb25937 100644 --- a/arch/powerpc/kvm/booke.c +++ b

[PATCH 2/2] KVM : powerpc/booke: Allow debug interrupt injection to guest

This patch allow userspace to inject debug interrupt to guest. Signed-off-by: Bharat Bhushan bharat.bhus...@freescale.com --- arch/powerpc/kvm/booke.c | 31 +-- arch/powerpc/kvm/e500mc.c | 10 +- 2 files changed, 38 insertions(+), 3 deletions(-) diff --git

[PATCH 0/2] KVM: powerpc/booke: Debug interrupt injection to guest

First patch add support for debug interrupt at debug level while second patch add supports for allowing userspace to inject debug interrupt to guest. Bharat Bhushan (2): KVM: powerpc/booke: allow debug interrupt at debug level KVM : powerpc/booke: Allow debug interrupt injection to guest

[PATCH 2/2] KVM : powerpc/booke: Allow debug interrupt injection to guest

This patch allow userspace to inject debug interrupt to guest. Signed-off-by: Bharat Bhushan bharat.bhus...@freescale.com --- arch/powerpc/kvm/booke.c | 31 +-- arch/powerpc/kvm/e500mc.c | 10 +- 2 files changed, 38 insertions(+), 3 deletions(-) diff --git

[PATCH 1/2] KVM: powerpc/booke: allow debug interrupt at debug level

level to be used. Signed-off-by: Bharat Bhushan bharat.bhus...@freescale.com --- arch/powerpc/kvm/booke.c | 6 +- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/arch/powerpc/kvm/booke.c b/arch/powerpc/kvm/booke.c index ab62109..bb25937 100644 --- a/arch/powerpc/kvm/booke.c +++ b

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