Commit-ID: 3712caeb14dcb33fb4d5114f14c0beef10aca101
Gitweb: https://git.kernel.org/tip/3712caeb14dcb33fb4d5114f14c0beef10aca101
Author: KarimAllah Ahmed <karah...@amazon.de>
AuthorDate: Sat, 10 Feb 2018 23:39:26 +
Committer: Ingo Molnar <mi...@kernel.org>
CommitDate: Tue,
Commit-ID: 3712caeb14dcb33fb4d5114f14c0beef10aca101
Gitweb: https://git.kernel.org/tip/3712caeb14dcb33fb4d5114f14c0beef10aca101
Author: KarimAllah Ahmed
AuthorDate: Sat, 10 Feb 2018 23:39:26 +
Committer: Ingo Molnar
CommitDate: Tue, 13 Feb 2018 09:00:17 +0100
KVM/nVMX: Set
Commit-ID: 206587a9fb764d71f035dc7f6d3b6488f5d5b304
Gitweb: https://git.kernel.org/tip/206587a9fb764d71f035dc7f6d3b6488f5d5b304
Author: KarimAllah Ahmed <karah...@amazon.de>
AuthorDate: Sat, 10 Feb 2018 23:39:25 +
Committer: Ingo Molnar <mi...@kernel.org>
CommitDate: Tue,
Commit-ID: 206587a9fb764d71f035dc7f6d3b6488f5d5b304
Gitweb: https://git.kernel.org/tip/206587a9fb764d71f035dc7f6d3b6488f5d5b304
Author: KarimAllah Ahmed
AuthorDate: Sat, 10 Feb 2018 23:39:25 +
Committer: Ingo Molnar
CommitDate: Tue, 13 Feb 2018 09:00:06 +0100
X86/nVMX: Properly
Commit-ID: fb5b90b795c76e9c10c520fcdb7fe0d7b8334833
Gitweb: https://git.kernel.org/tip/fb5b90b795c76e9c10c520fcdb7fe0d7b8334833
Author: KarimAllah Ahmed <karah...@amazon.de>
AuthorDate: Sat, 10 Feb 2018 23:39:25 +
Committer: Ingo Molnar <mi...@kernel.org>
CommitDate: Sun,
Commit-ID: fb5b90b795c76e9c10c520fcdb7fe0d7b8334833
Gitweb: https://git.kernel.org/tip/fb5b90b795c76e9c10c520fcdb7fe0d7b8334833
Author: KarimAllah Ahmed
AuthorDate: Sat, 10 Feb 2018 23:39:25 +
Committer: Ingo Molnar
CommitDate: Sun, 11 Feb 2018 11:24:16 +0100
X86/nVMX: Properly
Commit-ID: ff37dc0cd96c266c7700386b7ba48abc32a91b1f
Gitweb: https://git.kernel.org/tip/ff37dc0cd96c266c7700386b7ba48abc32a91b1f
Author: KarimAllah Ahmed <karah...@amazon.de>
AuthorDate: Sat, 10 Feb 2018 23:39:26 +
Committer: Ingo Molnar <mi...@kernel.org>
CommitDate: Sun,
Commit-ID: ff37dc0cd96c266c7700386b7ba48abc32a91b1f
Gitweb: https://git.kernel.org/tip/ff37dc0cd96c266c7700386b7ba48abc32a91b1f
Author: KarimAllah Ahmed
AuthorDate: Sat, 10 Feb 2018 23:39:26 +
Committer: Ingo Molnar
CommitDate: Sun, 11 Feb 2018 11:24:16 +0100
KVM/nVMX: Set
On 02/05/2018 08:26 PM, Mihai Donțu wrote:
On Mon, 2018-02-05 at 19:47 +0100, KarimAllah Ahmed wrote:
Guest memory can either be directly managed by the kernel (i.e. have a "struct
page") or they can simply live outside kernel control (i.e. do not have a
"struct page")
On 02/05/2018 08:26 PM, Mihai Donțu wrote:
On Mon, 2018-02-05 at 19:47 +0100, KarimAllah Ahmed wrote:
Guest memory can either be directly managed by the kernel (i.e. have a "struct
page") or they can simply live outside kernel control (i.e. do not have a
"struct page")
On 02/10/2018 12:57 AM, Jim Mattson wrote:
On Fri, Feb 9, 2018 at 3:41 PM, KarimAllah Ahmed <karah...@amazon.com> wrote:
I assume you are referring to this:
https://patchwork.kernel.org/patch/10194819/
.. which is now:
commit 904e14fb7cb9 ("KVM: VMX: make MSR bitmaps per-VC
On 02/10/2018 12:57 AM, Jim Mattson wrote:
On Fri, Feb 9, 2018 at 3:41 PM, KarimAllah Ahmed wrote:
I assume you are referring to this:
https://patchwork.kernel.org/patch/10194819/
.. which is now:
commit 904e14fb7cb9 ("KVM: VMX: make MSR bitmaps per-VCPU")
right?
If this i
On 02/10/2018 12:26 AM, Jim Mattson wrote:
On Thu, Feb 8, 2018 at 2:53 PM, KarimAllah Ahmed <karah...@amazon.de> wrote:
... otherwise we will just be running with the L1 MSR BITMAP!
It does not seem that we ever update the MSR_BITMAP when the nested guest
is running. The only place wh
On 02/10/2018 12:26 AM, Jim Mattson wrote:
On Thu, Feb 8, 2018 at 2:53 PM, KarimAllah Ahmed wrote:
... otherwise we will just be running with the L1 MSR BITMAP!
It does not seem that we ever update the MSR_BITMAP when the nested guest
is running. The only place where we update the MSR_BITMAP
On 02/05/2018 11:26 PM, Jim Mattson wrote:
On Mon, Feb 5, 2018 at 10:48 AM KarimAllah Ahmed <karah...@amazon.de> wrote:
@@ -5264,9 +5264,8 @@ static void
vmx_complete_nested_posted_interrupt(struct kvm_vcpu *vcpu)
max_irr = find_last_bit((unsigned long
*)vmx->nested.pi_
On 02/05/2018 11:26 PM, Jim Mattson wrote:
On Mon, Feb 5, 2018 at 10:48 AM KarimAllah Ahmed wrote:
@@ -5264,9 +5264,8 @@ static void
vmx_complete_nested_posted_interrupt(struct kvm_vcpu *vcpu)
max_irr = find_last_bit((unsigned long
*)vmx->nested.pi_desc->pi
: 086e7d4118cc ("KVM: VMX: Allow direct access to MSR_IA32_SPEC_CTRL")
Signed-off-by: KarimAllah Ahmed <karah...@amazon.de>
Cc: Paolo Bonzini <pbonz...@redhat.com>
Cc: Radim Krčmář <rkrc...@redhat.com>
Cc: k...@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
---
arch/x8
: 086e7d4118cc ("KVM: VMX: Allow direct access to MSR_IA32_SPEC_CTRL")
Signed-off-by: KarimAllah Ahmed
Cc: Paolo Bonzini
Cc: Radim Krčmář
Cc: k...@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
---
arch/x86/kvm/vmx.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --
ccess to
MSR_IA32_SPEC_CTRL")
this was probably OK since the decision was always identical. This is no
longer the case now since the MSR bitmap might actually change once we
decide to not intercept SPEC_CTRL and PRED_CMD.
Signed-off-by: KarimAllah Ahmed <karah...@amazon.de>
Cc: Paol
ccess to
MSR_IA32_SPEC_CTRL")
this was probably OK since the decision was always identical. This is no
longer the case now since the MSR bitmap might actually change once we
decide to not intercept SPEC_CTRL and PRED_CMD.
Signed-off-by: KarimAllah Ahmed
Cc: Paolo Bonzini
Cc: Radim Krč
... otherwise we will just be running with the L1 MSR BITMAP!
It does not seem that we ever update the MSR_BITMAP when the nested guest
is running. The only place where we update the MSR_BITMAP field in VMCS is
for the L1 guest!
Signed-off-by: KarimAllah Ahmed <karah...@amazon.de>
Cc:
... otherwise we will just be running with the L1 MSR BITMAP!
It does not seem that we ever update the MSR_BITMAP when the nested guest
is running. The only place where we update the MSR_BITMAP field in VMCS is
for the L1 guest!
Signed-off-by: KarimAllah Ahmed
Cc: Paolo Bonzini
Cc: Radim
On 02/05/2018 11:15 PM, Jim Mattson wrote:
On Mon, Feb 5, 2018 at 10:49 AM KarimAllah Ahmed <karah...@amazon.de> wrote:
@@ -7410,19 +7410,17 @@ static int handle_vmon(struct kvm_vcpu *vcpu)
return kvm_skip_emulated_instruction(vcpu);
}
-
On 02/05/2018 11:15 PM, Jim Mattson wrote:
On Mon, Feb 5, 2018 at 10:49 AM KarimAllah Ahmed wrote:
@@ -7410,19 +7410,17 @@ static int handle_vmon(struct kvm_vcpu *vcpu)
return kvm_skip_emulated_instruction(vcpu);
}
- page = kvm_vcpu_gpa_to_page(vcpu
s use-case as
well.
Cc: Paolo Bonzini <pbonz...@redhat.com>
Cc: Radim Krčmář <rkrc...@redhat.com>
Cc: k...@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: KarimAllah Ahmed <karah...@amazon.de>
---
arch/x86/kvm/vmx.c | 40 ++--
1
s use-case as
well.
Cc: Paolo Bonzini
Cc: Radim Krčmář
Cc: k...@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: KarimAllah Ahmed
---
arch/x86/kvm/vmx.c | 40 ++--
1 file changed, 18 insertions(+), 22 deletions(-)
diff --git a/arch/x86/kvm/vm
uct page").
Cc: Paolo Bonzini <pbonz...@redhat.com>
Cc: Radim Krčmář <rkrc...@redhat.com>
Cc: k...@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: KarimAllah Ahmed <karah...@amazon.de>
---
include/linux/kvm_host.h | 18 +++
uct page").
Cc: Paolo Bonzini
Cc: Radim Krčmář
Cc: k...@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: KarimAllah Ahmed
---
include/linux/kvm_host.h | 18 ++
virt/kvm/kvm_main.c | 62
2 files changed, 80 inser
Cc: Paolo Bonzini <pbonz...@redhat.com>
Cc: Radim Krčmář <rkrc...@redhat.com>
Cc: k...@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: KarimAllah Ahmed <karah...@amazon.de>
---
arch/x86/kvm/vmx.c | 16
1 file changed, 8 insertions(+), 8 deleti
Cc: Paolo Bonzini
Cc: Radim Krčmář
Cc: k...@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: KarimAllah Ahmed
---
arch/x86/kvm/vmx.c | 16
1 file changed, 8 insertions(+), 8 deletions(-)
diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index 9e45bd1
s use-case as
well.
Cc: Paolo Bonzini <pbonz...@redhat.com>
Cc: Radim Krčmář <rkrc...@redhat.com>
Cc: k...@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: KarimAllah Ahmed <karah...@amazon.de>
---
arch/x86/kvm/vmx.c | 11 +--
1 file changed, 5 insertions(+)
s use-case as
well.
Cc: Paolo Bonzini
Cc: Radim Krčmář
Cc: k...@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: KarimAllah Ahmed
---
arch/x86/kvm/vmx.c | 11 +--
1 file changed, 5 insertions(+), 6 deletions(-)
diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index 717717
se as
well.
Cc: Paolo Bonzini <pbonz...@redhat.com>
Cc: Radim Krčmář <rkrc...@redhat.com>
Cc: k...@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: KarimAllah Ahmed <karah...@amazon.de>
---
arch/x86/kvm/vmx.c | 14 ++
1 file changed, 6 insertions(+)
Cc: Paolo Bonzini <pbonz...@redhat.com>
Cc: Radim Krčmář <rkrc...@redhat.com>
Cc: k...@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: KarimAllah Ahmed <karah...@amazon.de>
---
include/linux/kvm_host.h | 6 --
1 file changed, 6 deletions(-)
diff --g
Cc: Paolo Bonzini
Cc: Radim Krčmář
Cc: k...@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: KarimAllah Ahmed
---
include/linux/kvm_host.h | 6 --
1 file changed, 6 deletions(-)
diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h
index 45d2854..44db14a 100644
se as
well.
Cc: Paolo Bonzini
Cc: Radim Krčmář
Cc: k...@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: KarimAllah Ahmed
---
arch/x86/kvm/vmx.c | 14 ++
1 file changed, 6 insertions(+), 8 deletions(-)
diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index 40d73f
f this use-case as
well.
Cc: Paolo Bonzini <pbonz...@redhat.com>
Cc: Radim Krčmář <rkrc...@redhat.com>
Cc: k...@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: KarimAllah Ahmed <karah...@amazon.de>
---
arch/x86/kvm/vmx.c | 33 +
1
f this use-case as
well.
Cc: Paolo Bonzini
Cc: Radim Krčmář
Cc: k...@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: KarimAllah Ahmed
---
arch/x86/kvm/vmx.c | 33 +
1 file changed, 13 insertions(+), 20 deletions(-)
diff --git a/arch/x86/kvm/vmx.c
is is an acceptable API.
Most of the offending code paths that has been updated are in the nested code
base. Mostly because I stumbled upon this code while looking at the nested MSR
bitmap handling for the IBRS patches. There are also offending code paths in
SVM code, but I will do that once the inte
Cc: Paolo Bonzini <pbonz...@redhat.com>
Cc: Radim Krčmář <rkrc...@redhat.com>
Cc: k...@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: KarimAllah Ahmed <karah...@amazon.de>
---
arch/x86/kvm/hyperv.c | 12 ++--
1 file changed, 6 insertions(+), 6 deleti
is is an acceptable API.
Most of the offending code paths that has been updated are in the nested code
base. Mostly because I stumbled upon this code while looking at the nested MSR
bitmap handling for the IBRS patches. There are also offending code paths in
SVM code, but I will do that once the inte
Cc: Paolo Bonzini
Cc: Radim Krčmář
Cc: k...@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: KarimAllah Ahmed
---
arch/x86/kvm/hyperv.c | 12 ++--
1 file changed, 6 insertions(+), 6 deletions(-)
diff --git a/arch/x86/kvm/hyperv.c b/arch/x86/kvm/hyperv.c
index dc97f25
f this use-case as
well.
Cc: Paolo Bonzini <pbonz...@redhat.com>
Cc: Radim Krčmář <rkrc...@redhat.com>
Cc: k...@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: KarimAllah Ahmed <karah...@amazon.de>
---
arch/x86/kvm/vmx.c | 34 --
1
f this use-case as
well.
Cc: Paolo Bonzini
Cc: Radim Krčmář
Cc: k...@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: KarimAllah Ahmed
---
arch/x86/kvm/vmx.c | 34 --
1 file changed, 12 insertions(+), 22 deletions(-)
diff --git a/arch/x86/kvm/vm
Cc: Paolo Bonzini <pbonz...@redhat.com>
Cc: Radim Krčmář <rkrc...@redhat.com>
Cc: k...@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: KarimAllah Ahmed <karah...@amazon.de>
---
arch/x86/kvm/x86.c | 12 +---
1 file changed, 5 insertions(+), 7 deletions(-)
Cc: Paolo Bonzini
Cc: Radim Krčmář
Cc: k...@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: KarimAllah Ahmed
---
arch/x86/kvm/x86.c | 12 +---
1 file changed, 5 insertions(+), 7 deletions(-)
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index ac38143..db0fd24
Cc: Paolo Bonzini <pbonz...@redhat.com>
Cc: Radim Krčmář <rkrc...@redhat.com>
Cc: k...@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: KarimAllah Ahmed <karah...@amazon.de>
---
arch/x86/kvm/hyperv.c | 12 ++--
1 file changed, 6 insertions(+), 6 deleti
Cc: Paolo Bonzini
Cc: Radim Krčmář
Cc: k...@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: KarimAllah Ahmed
---
arch/x86/kvm/hyperv.c | 12 ++--
1 file changed, 6 insertions(+), 6 deletions(-)
diff --git a/arch/x86/kvm/hyperv.c b/arch/x86/kvm/hyperv.c
index 408428a
f this use-case as
well.
Cc: Paolo Bonzini <pbonz...@redhat.com>
Cc: Radim Krčmář <rkrc...@redhat.com>
Cc: k...@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: KarimAllah Ahmed <karah...@amazon.de>
---
arch/x86/kvm/vmx.c | 11 +--
1 file changed, 5 inserti
f this use-case as
well.
Cc: Paolo Bonzini
Cc: Radim Krčmář
Cc: k...@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: KarimAllah Ahmed
---
arch/x86/kvm/vmx.c | 11 +--
1 file changed, 5 insertions(+), 6 deletions(-)
diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
ind
Commit-ID: b2ac58f90540e39324e7a29a7ad471407ae0bf48
Gitweb: https://git.kernel.org/tip/b2ac58f90540e39324e7a29a7ad471407ae0bf48
Author: KarimAllah Ahmed <karah...@amazon.de>
AuthorDate: Sat, 3 Feb 2018 15:56:23 +0100
Committer: Thomas Gleixner <t...@linutronix.de>
CommitDate
Commit-ID: b2ac58f90540e39324e7a29a7ad471407ae0bf48
Gitweb: https://git.kernel.org/tip/b2ac58f90540e39324e7a29a7ad471407ae0bf48
Author: KarimAllah Ahmed
AuthorDate: Sat, 3 Feb 2018 15:56:23 +0100
Committer: Thomas Gleixner
CommitDate: Sat, 3 Feb 2018 23:06:52 +0100
KVM/SVM: Allow
Commit-ID: d28b387fb74da95d69d2615732f50cceb38e9a4d
Gitweb: https://git.kernel.org/tip/d28b387fb74da95d69d2615732f50cceb38e9a4d
Author: KarimAllah Ahmed <karah...@amazon.de>
AuthorDate: Thu, 1 Feb 2018 22:59:45 +0100
Committer: Thomas Gleixner <t...@linutronix.de>
CommitDate
Commit-ID: 28c1c9fabf48d6ad596273a11c46e0d0da3e14cd
Gitweb: https://git.kernel.org/tip/28c1c9fabf48d6ad596273a11c46e0d0da3e14cd
Author: KarimAllah Ahmed <karah...@amazon.de>
AuthorDate: Thu, 1 Feb 2018 22:59:44 +0100
Committer: Thomas Gleixner <t...@linutronix.de>
CommitDate
Commit-ID: d28b387fb74da95d69d2615732f50cceb38e9a4d
Gitweb: https://git.kernel.org/tip/d28b387fb74da95d69d2615732f50cceb38e9a4d
Author: KarimAllah Ahmed
AuthorDate: Thu, 1 Feb 2018 22:59:45 +0100
Committer: Thomas Gleixner
CommitDate: Sat, 3 Feb 2018 23:06:52 +0100
KVM/VMX: Allow
Commit-ID: 28c1c9fabf48d6ad596273a11c46e0d0da3e14cd
Gitweb: https://git.kernel.org/tip/28c1c9fabf48d6ad596273a11c46e0d0da3e14cd
Author: KarimAllah Ahmed
AuthorDate: Thu, 1 Feb 2018 22:59:44 +0100
Committer: Thomas Gleixner
CommitDate: Sat, 3 Feb 2018 23:06:52 +0100
KVM/VMX: Emulate
Commit-ID: b7b27aa011a1df42728d1768fc181d9ce69e6911
Gitweb: https://git.kernel.org/tip/b7b27aa011a1df42728d1768fc181d9ce69e6911
Author: KarimAllah Ahmed <karah...@amazon.de>
AuthorDate: Thu, 1 Feb 2018 22:59:42 +0100
Committer: Thomas Gleixner <t...@linutronix.de>
CommitDate
Commit-ID: b7b27aa011a1df42728d1768fc181d9ce69e6911
Gitweb: https://git.kernel.org/tip/b7b27aa011a1df42728d1768fc181d9ce69e6911
Author: KarimAllah Ahmed
AuthorDate: Thu, 1 Feb 2018 22:59:42 +0100
Committer: Thomas Gleixner
CommitDate: Sat, 3 Feb 2018 23:06:51 +0100
KVM/x86: Update
ion.org>
Cc: Andy Lutomirski <l...@kernel.org>
Cc: Ashok Raj <ashok@intel.com>
Signed-off-by: KarimAllah Ahmed <karah...@amazon.de>
Signed-off-by: David Woodhouse <d...@amazon.co.uk>
---
v6:
- ditch save_spec_ctrl_on_ex
Hansen
Cc: Andi Kleen
Cc: Andrea Arcangeli
Cc: Linus Torvalds
Cc: Tim Chen
Cc: Thomas Gleixner
Cc: Dan Williams
Cc: Jun Nakajima
Cc: Paolo Bonzini
Cc: David Woodhouse
Cc: Greg KH
Cc: Andy Lutomirski
Cc: Ashok Raj
Signed-off-by: KarimAllah Ahmed
Signed-off-by: David Woodhouse
---
v6
Commit-ID: 9005c6834c0ffdfe46afa76656bd9276cca864f6
Gitweb: https://git.kernel.org/tip/9005c6834c0ffdfe46afa76656bd9276cca864f6
Author: KarimAllah Ahmed <karah...@amazon.de>
AuthorDate: Thu, 1 Feb 2018 11:27:21 +
Committer: Thomas Gleixner <t...@linutronix.de>
CommitDate
Commit-ID: 9005c6834c0ffdfe46afa76656bd9276cca864f6
Gitweb: https://git.kernel.org/tip/9005c6834c0ffdfe46afa76656bd9276cca864f6
Author: KarimAllah Ahmed
AuthorDate: Thu, 1 Feb 2018 11:27:21 +
Committer: Thomas Gleixner
CommitDate: Fri, 2 Feb 2018 12:28:27 +0100
x86/spectre
er.kernel.org
Cc: linux-kernel@vger.kernel.org
Reviewed-by: Paolo Bonzini <pbonz...@redhat.com>
Reviewed-by: Konrad Rzeszutek Wilk <konrad.w...@oracle.com>
Signed-off-by: KarimAllah Ahmed <karah...@amazon.de>
Signed-off-by: David Woodhouse <d...@amazon.co.uk>
---
arch/x86/k
-by: KarimAllah Ahmed
Signed-off-by: David Woodhouse
---
arch/x86/kvm/cpuid.c | 8 +++-
arch/x86/kvm/cpuid.h | 1 +
2 files changed, 4 insertions(+), 5 deletions(-)
diff --git a/arch/x86/kvm/cpuid.c b/arch/x86/kvm/cpuid.c
index 0099e10..c0eb337 100644
--- a/arch/x86/kvm/cpuid.c
+++ b/arch/x86/kvm
ion.org>
Cc: Andy Lutomirski <l...@kernel.org>
Cc: Ashok Raj <ashok@intel.com>
Signed-off-by: KarimAllah Ahmed <karah...@amazon.de>
Signed-off-by: David Woodhouse <d...@amazon.co.uk>
---
v5:
- Add SPEC_CTRL to direct_access_msrs.
---
arch/x86/kvm/svm.c | 59 +++
Hansen
Cc: Andi Kleen
Cc: Andrea Arcangeli
Cc: Linus Torvalds
Cc: Tim Chen
Cc: Thomas Gleixner
Cc: Dan Williams
Cc: Jun Nakajima
Cc: Paolo Bonzini
Cc: David Woodhouse
Cc: Greg KH
Cc: Andy Lutomirski
Cc: Ashok Raj
Signed-off-by: KarimAllah Ahmed
Signed-off-by: David Woodhouse
---
v5
).
- Handle nested guests properly.
- expose F(IBRS) in kvm_cpuid_8000_0008_ebx_x86_features
Ashok Raj (1):
KVM: x86: Add IBPB support
KarimAllah Ahmed (4):
KVM: x86: Update the reverse_cpuid list to include CPUID_7_EDX
KVM: VMX: Emulate MSR_IA32_ARCH_CAPABILITIES
KVM: VMX: Allow direct access
).
- Handle nested guests properly.
- expose F(IBRS) in kvm_cpuid_8000_0008_ebx_x86_features
Ashok Raj (1):
KVM: x86: Add IBPB support
KarimAllah Ahmed (4):
KVM: x86: Update the reverse_cpuid list to include CPUID_7_EDX
KVM: VMX: Emulate MSR_IA32_ARCH_CAPABILITIES
KVM: VMX: Allow direct access
om>
Signed-off-by: Ashok Raj <ashok@intel.com>
Signed-off-by: Peter Zijlstra (Intel) <pet...@infradead.org>
Link:
http://lkml.kernel.org/r/1515720739-43819-6-git-send-email-ashok@intel.com
Signed-off-by: David Woodhouse <d...@amazon.co.uk>
Signed-off-by: Karim
-6-git-send-email-ashok@intel.com
Signed-off-by: David Woodhouse
Signed-off-by: KarimAllah Ahmed
---
v6:
- introduce msr_write_intercepted_l01
v5:
- Use MSR_TYPE_W instead of MSR_TYPE_R for the MSR.
- Always merge the bitmaps unconditionally.
- Add PRED_CMD to direct_access_msrs.
- Also
: Paolo Bonzini <pbonz...@redhat.com>
Cc: Ashok Raj <ashok@intel.com>
Reviewed-by: Paolo Bonzini <pbonz...@redhat.com>
Signed-off-by: KarimAllah Ahmed <karah...@amazon.de>
Signed-off-by: David Woodhouse <d...@amazon.co.uk>
---
arch/x86/kvm/cpuid.c | 2 +-
arch/x86/kvm/vm
-by: KarimAllah Ahmed
Signed-off-by: David Woodhouse
---
arch/x86/kvm/cpuid.c | 2 +-
arch/x86/kvm/vmx.c | 15 +++
arch/x86/kvm/x86.c | 1 +
3 files changed, 17 insertions(+), 1 deletion(-)
diff --git a/arch/x86/kvm/cpuid.c b/arch/x86/kvm/cpuid.c
index 033004d..1909635 100644
gt;
Cc: Paolo Bonzini <pbonz...@redhat.com>
Cc: David Woodhouse <d...@amazon.co.uk>
Cc: Greg KH <gre...@linuxfoundation.org>
Cc: Andy Lutomirski <l...@kernel.org>
Cc: Ashok Raj <ashok@intel.com>
Signed-off-by: KarimAllah Ahmed <karah...@amazon.de>
Sign
Woodhouse
Cc: Greg KH
Cc: Andy Lutomirski
Cc: Ashok Raj
Signed-off-by: KarimAllah Ahmed
Signed-off-by: David Woodhouse
---
v6:
- got rid of save_spec_ctrl_on_exit
- introduce msr_write_intercepted
v5:
- Also check for X86_FEATURE_SPEC_CTRL for the msr reads/writes
v4:
- Add IBRS
On 02/01/2018 06:37 PM, KarimAllah Ahmed wrote:
On 02/01/2018 02:25 PM, David Woodhouse wrote:
On Wed, 2018-01-31 at 23:26 -0500, Konrad Rzeszutek Wilk wrote:
diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index 6a9f4ec..bfc80ff 100644
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm
On 02/01/2018 06:37 PM, KarimAllah Ahmed wrote:
On 02/01/2018 02:25 PM, David Woodhouse wrote:
On Wed, 2018-01-31 at 23:26 -0500, Konrad Rzeszutek Wilk wrote:
diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index 6a9f4ec..bfc80ff 100644
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm
On 02/01/2018 02:25 PM, David Woodhouse wrote:
On Wed, 2018-01-31 at 23:26 -0500, Konrad Rzeszutek Wilk wrote:
diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index 6a9f4ec..bfc80ff 100644
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -594,6 +594,14 @@ struct vcpu_vmx {
On 02/01/2018 02:25 PM, David Woodhouse wrote:
On Wed, 2018-01-31 at 23:26 -0500, Konrad Rzeszutek Wilk wrote:
diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index 6a9f4ec..bfc80ff 100644
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -594,6 +594,14 @@ struct vcpu_vmx {
On 02/01/2018 03:19 PM, Konrad Rzeszutek Wilk wrote:
.snip..
+/* Is SPEC_CTRL intercepted for the currently running vCPU? */
+static bool spec_ctrl_intercepted(struct kvm_vcpu *vcpu)
+{
+ unsigned long *msr_bitmap;
+ int f = sizeof(unsigned long);
+
+ if
On 02/01/2018 03:19 PM, Konrad Rzeszutek Wilk wrote:
.snip..
+/* Is SPEC_CTRL intercepted for the currently running vCPU? */
+static bool spec_ctrl_intercepted(struct kvm_vcpu *vcpu)
+{
+ unsigned long *msr_bitmap;
+ int f = sizeof(unsigned long);
+
+ if
720739-43819-6-git-send-email-ashok@intel.com
Signed-off-by: David Woodhouse <d...@amazon.co.uk>
Signed-off-by: KarimAllah Ahmed <karah...@amazon.de>
---
v6:
- introduce pred_cmd_used
v5:
- Use MSR_TYPE_W instead of MSR_TYPE_R for the MSR.
- Always merge the bitmaps unconditionally.
igned-off-by: Ashok Raj
Signed-off-by: Peter Zijlstra (Intel)
Link: http://lkml.kernel.org/r/1515720739-43819-6-git-send-email-ashok@intel.com
Signed-off-by: David Woodhouse
Signed-off-by: KarimAllah Ahmed
---
v6:
- introduce pred_cmd_used
v5:
- Use MSR_TYPE_W instead of MSR_TYPE_R for the MSR.
On 01/31/2018 11:52 PM, KarimAllah Ahmed wrote:
On 01/31/2018 09:18 PM, Jim Mattson wrote:
On Wed, Jan 31, 2018 at 12:01 PM, KarimAllah Ahmed
<karah...@amazon.com> wrote:
but save_spec_ctrl_on_exit is also set for L2 write. So once L2 writes
to it, this condition will b
On 01/31/2018 11:52 PM, KarimAllah Ahmed wrote:
On 01/31/2018 09:18 PM, Jim Mattson wrote:
On Wed, Jan 31, 2018 at 12:01 PM, KarimAllah Ahmed
wrote:
but save_spec_ctrl_on_exit is also set for L2 write. So once L2 writes
to it, this condition will be true and then the bitmap will be updated
On 01/31/2018 09:18 PM, Jim Mattson wrote:
On Wed, Jan 31, 2018 at 12:01 PM, KarimAllah Ahmed <karah...@amazon.com> wrote:
but save_spec_ctrl_on_exit is also set for L2 write. So once L2 writes
to it, this condition will be true and then the bitmap will be updated.
So if L1 or any L2
On 01/31/2018 09:18 PM, Jim Mattson wrote:
On Wed, Jan 31, 2018 at 12:01 PM, KarimAllah Ahmed wrote:
but save_spec_ctrl_on_exit is also set for L2 write. So once L2 writes
to it, this condition will be true and then the bitmap will be updated.
So if L1 or any L2 writes to the MSR
On 01/31/2018 09:28 PM, Konrad Rzeszutek Wilk wrote:
diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index d46a61b..2e4e8af 100644
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -2285,6 +2285,7 @@ static void vmx_vcpu_load(struct kvm_vcpu *vcpu, int cpu)
if
On 01/31/2018 09:28 PM, Konrad Rzeszutek Wilk wrote:
diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index d46a61b..2e4e8af 100644
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -2285,6 +2285,7 @@ static void vmx_vcpu_load(struct kvm_vcpu *vcpu, int cpu)
if
On 01/31/2018 08:53 PM, Jim Mattson wrote:
On Wed, Jan 31, 2018 at 11:37 AM, KarimAllah Ahmed <karah...@amazon.de> wrote:
+
+ if (to_vmx(vcpu)->save_spec_ctrl_on_exit) {
+ nested_vmx_disable_intercept_for_msr(
+ msr_bitmap_l1, msr_
On 01/31/2018 08:53 PM, Jim Mattson wrote:
On Wed, Jan 31, 2018 at 11:37 AM, KarimAllah Ahmed wrote:
+
+ if (to_vmx(vcpu)->save_spec_ctrl_on_exit) {
+ nested_vmx_disable_intercept_for_msr(
+ msr_bitmap_l1, msr_bitmap
ion.org>
Cc: Andy Lutomirski <l...@kernel.org>
Cc: Ashok Raj <ashok@intel.com>
Signed-off-by: KarimAllah Ahmed <karah...@amazon.de>
Signed-off-by: David Woodhouse <d...@amazon.co.uk>
---
v5:
- Add SPEC_CTRL to direct_access_msrs.
---
arch/x86/kvm/svm.c | 59 +++
Hansen
Cc: Andi Kleen
Cc: Andrea Arcangeli
Cc: Linus Torvalds
Cc: Tim Chen
Cc: Thomas Gleixner
Cc: Dan Williams
Cc: Jun Nakajima
Cc: Paolo Bonzini
Cc: David Woodhouse
Cc: Greg KH
Cc: Andy Lutomirski
Cc: Ashok Raj
Signed-off-by: KarimAllah Ahmed
Signed-off-by: David Woodhouse
---
v5
om>
Cc: Paolo Bonzini <pbonz...@redhat.com>
Cc: David Woodhouse <d...@amazon.co.uk>
Cc: Greg KH <gre...@linuxfoundation.org>
Cc: Andy Lutomirski <l...@kernel.org>
Cc: Ashok Raj <ashok@intel.com>
Signed-off-by: KarimAllah Ahmed <karah...@amazon.de>
Signed-
Woodhouse
Cc: Greg KH
Cc: Andy Lutomirski
Cc: Ashok Raj
Signed-off-by: KarimAllah Ahmed
Signed-off-by: David Woodhouse
---
v5:
- Also check for X86_FEATURE_SPEC_CTRL for the msr reads/writes
v4:
- Add IBRS to kvm_cpuid_8000_0008_ebx_x86_features
- Handling nested guests
v3:
- Save/restore
ion.org>
Cc: Paolo Bonzini <pbonz...@redhat.com>
Cc: Ashok Raj <ashok@intel.com>
Reviewed-by: Paolo Bonzini <pbonz...@redhat.com>
Signed-off-by: KarimAllah Ahmed <karah...@amazon.de>
Signed-off-by: David Woodhouse <d...@amazon.co.uk>
---
arch/x86/kvm/cpuid.c | 2 +-
Signed-off-by: KarimAllah Ahmed
Signed-off-by: David Woodhouse
---
arch/x86/kvm/cpuid.c | 2 +-
arch/x86/kvm/vmx.c | 15 +++
arch/x86/kvm/x86.c | 1 +
3 files changed, 17 insertions(+), 1 deletion(-)
diff --git a/arch/x86/kvm/cpuid.c b/arch/x86/kvm/cpuid.c
index 033004d..1909635
om>
Signed-off-by: Ashok Raj <ashok@intel.com>
Signed-off-by: Peter Zijlstra (Intel) <pet...@infradead.org>
Link:
http://lkml.kernel.org/r/1515720739-43819-6-git-send-email-ashok@intel.com
Signed-off-by: David Woodhouse <d...@amazon.co.uk>
Signed-off-by: KarimAllah Ah
-6-git-send-email-ashok@intel.com
Signed-off-by: David Woodhouse
Signed-off-by: KarimAllah Ahmed
v5:
- Use MSR_TYPE_W instead of MSR_TYPE_R for the MSR.
- Always merge the bitmaps unconditionally.
- Add PRED_CMD to direct_access_msrs.
- Also check for X86_FEATURE_SPEC_CTRL for the msr reads/
er.kernel.org
Cc: linux-kernel@vger.kernel.org
Reviewed-by: Paolo Bonzini <pbonz...@redhat.com>
Signed-off-by: KarimAllah Ahmed <karah...@amazon.de>
Signed-off-by: David Woodhouse <d...@amazon.co.uk>
---
arch/x86/kvm/cpuid.c | 8 +++-
arch/x86/kvm/cpuid.h | 1 +
2 files chan
for SVM (5/5).
- Handle nested guests properly.
- expose F(IBRS) in kvm_cpuid_8000_0008_ebx_x86_features
Ashok Raj (1):
KVM: x86: Add IBPB support
KarimAllah Ahmed (4):
KVM: x86: Update the reverse_cpuid list to include CPUID_7_EDX
KVM: VMX: Emulate MSR_IA32_ARCH_CAPABILITIES
KVM: VMX
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