On 10/07/2020 22.36, Gerd Hoffmann wrote:
> Signed-off-by: Gerd Hoffmann
> ---
> tests/qtest/Makefile.include | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/tests/qtest/Makefile.include b/tests/qtest/Makefile.include
> index 98af2c2d9338..6a0276fd42dd 100644
> ---
QEMU only supports the two most recent versions of macOS (see
https://www.qemu.org/docs/master/system/build-platforms.html). Support
for older versions has been removed (see
https://git.qemu.org/?p=qemu.git;a=commitdiff;h=483644c25b93236001), so
if you still want to use QEMU on such an old system,
The commit fixes the issue in master branch:
https://git.qemu.org/?p=qemu.git;a=commit;h=de15df5ead400b7c3d0cf21c8164a7686dc81933
The fix is going to be released in 5.1
** Changed in: qemu
Status: In Progress => Fix Committed
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** Tags removed: x86
** Tags added: i386 testcase
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https://bugs.launchpad.net/bugs/1840719
Title:
win98se floppy fails to boot with isapc machine
Status in QEMU:
Fix Committed
Bug
On Fri, Jul 03, 2020 at 04:19:24PM +0200, Greg Kurz wrote:
> On Mon, 15 Jun 2020 11:20:31 +0200
> Greg Kurz wrote:
>
> > On Sat, 13 Jun 2020 17:18:04 +1000
> > David Gibson wrote:
> >
> > > On Thu, Jun 11, 2020 at 03:40:33PM +0200, Greg Kurz wrote:
> > > > Nested KVM-HV only works on POWER9.
>
On Wed, Jul 01, 2020 at 06:43:40PM -0500, Lijun Pan wrote:
> vmulld: Vector Multiply Low Doubleword.
>
> Signed-off-by: Lijun Pan
Applied to ppc-for-5.2.
> ---
> v4: add missing changes, and split to 5/11, 6/11, 7/11
> v3: use tcg_gen_gvec_mul()
> v2: fix coding style
> use Power ISA 3.1
On Wed, Jul 01, 2020 at 06:43:41PM -0500, Lijun Pan wrote:
> Add PPC2_FEATURE2_ARCH_3_10 to the PowerPC AT_HWCAP2 definitions.
>
> Signed-off-by: Lijun Pan
> ---
> v4: add missing changes, and split to 5/11, 6/11, 7/11
> v3: use tcg_gen_gvec_mul()
> v2: fix coding style
> use Power ISA 3.1
On 11.07.2020 19:34, Vladimir Sementsov-Ogievskiy wrote:
03.07.2020 16:13, Andrey Shinkevich wrote:
There are two ways to initialize a class derived from Qcow2Struct:
1. Pass a block of binary data to the constructor.
2. Pass the file descriptor to allow reading the file from constructor.
Let's
Worked being done for the Bionic SRU:
BUG: https://bugs.launchpad.net/qemu/+bug/1805256
(fix for the bionic regression demonstrated at LP: #1885419)
PPA: https://launchpad.net/~rafaeldtinoco/+archive/ubuntu/lp1805256-bionic
MERGE: https://tinyurl.com/y8sucs6x
Merge proposal currently going under
** Merge proposal linked:
https://code.launchpad.net/~rafaeldtinoco/ubuntu/+source/qemu/+git/qemu/+merge/387269
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https://bugs.launchpad.net/bugs/1805256
Title:
qemu-img hangs on
On 2020/7/10 下午9:30, Peter Xu wrote:
On Fri, Jul 10, 2020 at 02:34:11PM +0800, Jason Wang wrote:
On 2020/7/9 下午10:10, Peter Xu wrote:
On Thu, Jul 09, 2020 at 01:58:33PM +0800, Jason Wang wrote:
- If we care the performance, it's better to implement the MAP event for
vhost, otherwise it
On Sat, Jul 11, 2020 at 1:51 AM Richard Henderson <
richard.hender...@linaro.org> wrote:
> On 7/10/20 3:48 AM, frank.ch...@sifive.com wrote:
> > +#define REQUIRE_RVV do {\
> > +if (s->mstatus_vs == 0) \
> > +return false; \
> > +} while (0)
>
> You've used this macro already
On Sat, Jul 11, 2020 at 2:07 AM Richard Henderson <
richard.hender...@linaro.org> wrote:
> On 7/10/20 3:48 AM, frank.ch...@sifive.com wrote:
> > -static bool trans_vsetvl(DisasContext *ctx, arg_vsetvl *a)
> > +static bool trans_vsetvl(DisasContext *s, arg_vsetvl *a)
>
> Do not mix this change
On Sat, Jul 11, 2020 at 2:15 AM Richard Henderson <
richard.hender...@linaro.org> wrote:
> On 7/10/20 3:48 AM, frank.ch...@sifive.com wrote:
> > # *** Vector loads and stores are encoded within LOADFP/STORE-FP ***
> > -vlb_v ... 100 . 0 . 000 . 111 @r2_nfvm
> > -vlh_v
On Sat, Jul 11, 2020 at 5:53 AM Alistair Francis
wrote:
> On Fri, Jul 10, 2020 at 5:59 AM wrote:
> >
> > From: Frank Chang
> >
> > This patchset implements the vector extension v0.9 for RISC-V on QEMU.
> >
> > This patchset is sent as RFC because RVV v0.9 is still in draft state.
> > However,
On Sun, Jul 12, 2020 at 1:34 AM Alistair Francis wrote:
>
> On Thu, Jul 9, 2020 at 10:07 PM Bin Meng wrote:
> >
> > From: Bin Meng
> >
> > Update virt and sifive_u machines to use the opensbi fw_dynamic bios
> > image built for the generic FDT platform.
> >
> > Remove the out-of-date no longer
On 6/25/20 9:20 AM, Peter Maydell wrote:
> On Fri, 5 Jun 2020 at 05:17, Richard Henderson
>> @@ -787,9 +788,11 @@ abi_long target_mremap(abi_ulong old_addr, abi_ulong
>> old_size,
>> new_addr = -1;
>> } else {
>> new_addr = h2g(host_addr);
>> +/* FIXME: Move page
On Sun, Jul 12, 2020 at 1:28 AM Alistair Francis wrote:
>
> On Fri, Jul 10, 2020 at 11:36 AM Alistair Francis
> wrote:
> >
> > On Thu, Jul 9, 2020 at 10:11 PM Bin Meng wrote:
> > >
> > > From: Bin Meng
> > >
> > > Update the install blob list to include the generic platform
> > > fw_dynamic
Hi Alistair,
On Sun, Jul 12, 2020 at 12:04 AM Alistair Francis wrote:
>
> On Thu, Jul 9, 2020 at 5:50 PM Bin Meng wrote:
> >
> > Hi Palmer,
> >
> > On Fri, Jul 10, 2020 at 8:45 AM Palmer Dabbelt
> > wrote:
> > >
> > > On Thu, 09 Jul 2020 15:09:18 PDT (-0700), alistai...@gmail.com wrote:
> > >
On Tue, 07 Jul 2020 14:00:06 +0200
Markus Armbruster wrote:
> Paolo Bonzini writes:
>
> > On 07/07/20 07:33, Markus Armbruster wrote:
> >> Philippe Mathieu-Daudé writes:
> >>
> >>> On 7/7/20 6:45 AM, Thomas Huth wrote:
> On 27/05/2020 10.47, Markus Armbruster wrote:
> >
Hi Alistair,
On Sun, Jul 12, 2020 at 12:03 AM Alistair Francis wrote:
>
> On Thu, Jul 9, 2020 at 5:48 PM Bin Meng wrote:
> >
> > Hi Alistair,
> >
> > On Fri, Jul 10, 2020 at 6:19 AM Alistair Francis
> > wrote:
> > >
> > > On Thu, Jul 9, 2020 at 3:07 AM Bin Meng wrote:
> > > >
> > > > From:
On Tue, 2020-06-30 at 13:04 +0200, Philippe Mathieu-Daudé wrote:
> Simplify the NVMe emulated device by aligning the I/O BAR to 4 KiB.
>
> Reviewed-by: Klaus Jensen
> Signed-off-by: Philippe Mathieu-Daudé
> ---
> include/block/nvme.h | 2 ++
> hw/block/nvme.c | 5 ++---
> 2 files changed,
On Tue, 2020-06-30 at 13:04 +0200, Philippe Mathieu-Daudé wrote:
> The Persistent Memory Region Controller Memory Space Control
> register is 64-bit wide. See 'Figure 68: Register Definition'
> of the 'NVM Express Base Specification Revision 1.4'.
>
> Fixes: 6cf9413229 ("introduce PMR support
On Tue, 2020-06-30 at 13:04 +0200, Philippe Mathieu-Daudé wrote:
> These structures either describe hardware registers, or
> commands ('packets') to send to the hardware. To forbid
> the compiler to optimize and change fields alignment,
> mark the structures as packed.
>
> Reviewed-by: Klaus
https://github.com/Homebrew/brew/issues/7667
https://security.stackexchange.com/questions/232445/https-connection-to-
specific-sites-fail-with-curl-on-macos
This is a Cat & Mouse game...
Catch 22...
its Not a Brew problemm
is Not a glib problem,
is not a git problem,
so we dont care...
its an
console log
i installed Xcode 6.3 as recommended by MacPorts
"better than 6.1"
for Yosemite
** Attachment added: "console.txt"
https://bugs.launchpad.net/qemu/+bug/1887318/+attachment/5392137/+files/console.txt
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From: Liao Pingfang
Remove superfluous breaks, as there is a "return" before them.
Signed-off-by: Liao Pingfang
---
target/openrisc/sys_helper.c | 2 --
1 file changed, 2 deletions(-)
diff --git a/target/openrisc/sys_helper.c b/target/openrisc/sys_helper.c
index d9fe6c5..d9691d0 100644
---
From: Liao Pingfang
Remove superfluous breaks, as there is a "return" before them.
Signed-off-by: Liao Pingfang
---
hw/block/pflash_cfi01.c | 1 -
hw/display/cirrus_vga.c | 1 -
hw/display/qxl-logger.c | 2 --
hw/gpio/max7310.c | 3 ---
hw/i386/intel_iommu.c |
Public bug reported:
the Brew method has glib problems, glib is impossible to install.
the MacPorts method has a very long .log file.
** Affects: qemu
Importance: Undecided
Status: New
** Attachment added: "main.log"
From: Liao Pingfang
Remove superfluous breaks, as there is a "return" before them.
Signed-off-by: Liao Pingfang
---
target/ppc/misc_helper.c | 5 -
1 file changed, 5 deletions(-)
diff --git a/target/ppc/misc_helper.c b/target/ppc/misc_helper.c
index 55b68d1..e43a3b4 100644
---
From: Liao Pingfang
Remove superfluous breaks, as there is a "return" before them.
Signed-off-by: Liao Pingfang
---
target/sh4/translate.c | 3 ---
1 file changed, 3 deletions(-)
diff --git a/target/sh4/translate.c b/target/sh4/translate.c
index 6192d83..60c863d 100644
---
From: Liao Pingfang
Remove superfluous breaks, as there is a "return" before them.
Signed-off-by: Liao Pingfang
---
scsi/utils.c | 4
1 file changed, 4 deletions(-)
diff --git a/scsi/utils.c b/scsi/utils.c
index c50e81f..b37c283 100644
--- a/scsi/utils.c
+++ b/scsi/utils.c
@@ -32,17
From: Liao Pingfang
Remove superfluous breaks, as there is a "return" before them.
Signed-off-by: Liao Pingfang
---
block/vmdk.c | 3 ---
1 file changed, 3 deletions(-)
diff --git a/block/vmdk.c b/block/vmdk.c
index 28cec50..8f222e3 100644
--- a/block/vmdk.c
+++ b/block/vmdk.c
@@ -1053,14
From: Liao Pingfang
Remove superfluous break.
Signed-off-by: Liao Pingfang
---
target/arm/kvm64.c | 1 -
1 file changed, 1 deletion(-)
diff --git a/target/arm/kvm64.c b/target/arm/kvm64.c
index 1169237..ef1e960 100644
--- a/target/arm/kvm64.c
+++ b/target/arm/kvm64.c
@@ -330,7 +330,6 @@ int
From: Liao Pingfang
Remove superfluous breaks, as there is a "return" before them.
Signed-off-by: Liao Pingfang
---
migration/migration.c | 2 --
1 file changed, 2 deletions(-)
diff --git a/migration/migration.c b/migration/migration.c
index 92e44e0..2fd5fbb 100644
---
From: Liao Pingfang
Remove superfluous breaks, as there is a "return" before them.
Signed-off-by: Liao Pingfang
---
target/cris/translate.c | 7 +++
target/cris/translate_v10.inc.c | 2 --
2 files changed, 3 insertions(+), 6 deletions(-)
diff --git a/target/cris/translate.c
From: Liao Pingfang
Remove the superfluous break, as there is a "return" before.
Signed-off-by: Liao Pingfang
---
ui/vnc-enc-tight.c | 1 -
1 file changed, 1 deletion(-)
diff --git a/ui/vnc-enc-tight.c b/ui/vnc-enc-tight.c
index 1e08518..cebd358 100644
--- a/ui/vnc-enc-tight.c
+++
From: Liao Pingfang
Remove the superfluous break, as there is a "return" before it.
Signed-off-by: Liao Pingfang
---
fsdev/virtfs-proxy-helper.c | 1 -
1 file changed, 1 deletion(-)
diff --git a/fsdev/virtfs-proxy-helper.c b/fsdev/virtfs-proxy-helper.c
index de061a8..e68acc1 100644
---
From: Liao Pingfang
Remove superfluous breaks, as there is a "return" before them.
Signed-off-by: Liao Pingfang
---
tcg/riscv/tcg-target.inc.c | 2 --
1 file changed, 2 deletions(-)
diff --git a/tcg/riscv/tcg-target.inc.c b/tcg/riscv/tcg-target.inc.c
index 2bc0ba7..3c11ab8 100644
---
Signed-off-by: LIU Zhiwei
---
fpu/softfloat.c | 146 +++-
include/fpu/softfloat.h | 44
2 files changed, 189 insertions(+), 1 deletion(-)
diff --git a/fpu/softfloat.c b/fpu/softfloat.c
index 54fc889446..9a58107be3 100644
---
Signed-off-by: LIU Zhiwei
---
fpu/softfloat.c | 4
1 file changed, 4 insertions(+)
diff --git a/fpu/softfloat.c b/fpu/softfloat.c
index 79be4f5840..1ef07d9160 100644
--- a/fpu/softfloat.c
+++ b/fpu/softfloat.c
@@ -554,6 +554,10 @@ static const FloatFmt float16_params_ahp = {
Signed-off-by: LIU Zhiwei
---
fpu/softfloat-specialize.inc.c | 8
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/fpu/softfloat-specialize.inc.c b/fpu/softfloat-specialize.inc.c
index 034d18199c..6b778a7830 100644
--- a/fpu/softfloat-specialize.inc.c
+++
As bfloat16 is more and more popular in many archs, implement bfloat16
interfaces in softfloat, so that archs can add their bfloat16 insns
based on the blfoat16 interfaces here.
This patch set is more copy of float16 than really define new
interfaces or implementations.
Any thoughts are
Signed-off-by: LIU Zhiwei
---
include/fpu/softfloat-types.h | 8
1 file changed, 8 insertions(+)
diff --git a/include/fpu/softfloat-types.h b/include/fpu/softfloat-types.h
index 7680193ebc..8f8fdfeecf 100644
--- a/include/fpu/softfloat-types.h
+++ b/include/fpu/softfloat-types.h
@@
Signed-off-by: LIU Zhiwei
---
fpu/softfloat.c | 223
include/fpu/softfloat.h | 48 +
2 files changed, 271 insertions(+)
diff --git a/fpu/softfloat.c b/fpu/softfloat.c
index 9a58107be3..b6002d6856 100644
--- a/fpu/softfloat.c
+++
Signed-off-by: LIU Zhiwei
---
fpu/softfloat-specialize.inc.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/fpu/softfloat-specialize.inc.c b/fpu/softfloat-specialize.inc.c
index 44f5b661f8..034d18199c 100644
--- a/fpu/softfloat-specialize.inc.c
+++
Signed-off-by: LIU Zhiwei
---
fpu/softfloat.c | 20
1 file changed, 20 insertions(+)
diff --git a/fpu/softfloat.c b/fpu/softfloat.c
index 1ef07d9160..54fc889446 100644
--- a/fpu/softfloat.c
+++ b/fpu/softfloat.c
@@ -584,6 +584,11 @@ static inline FloatParts
Signed-off-by: LIU Zhiwei
---
fpu/softfloat-specialize.inc.c | 38 +++
include/fpu/softfloat.h| 41 ++
2 files changed, 79 insertions(+)
diff --git a/fpu/softfloat-specialize.inc.c b/fpu/softfloat-specialize.inc.c
index
On 7/11/20 7:24 AM, Peter Maydell wrote:
> Peter Maydell (3):
> qdev: Move doc comments from qdev.c to qdev-core.h
> qdev: Document qdev_unrealize()
> qdev: Document GPIO related functions
Reviewed-by: Richard Henderson
r~
On 200712 2025, Alexander Bulekov wrote:
> Public bug reported:
>
> Hello,
> Here is a reproducer:
> cat << EOF | ./i386-softmmu/qemu-system-i386 -M pc,accel=qtest\
> -qtest null -nographic -vga qxl -qtest stdio -nodefaults\
> -drive
Public bug reported:
Hello,
Here is a reproducer:
cat << EOF | ./i386-softmmu/qemu-system-i386 -M pc,accel=qtest\
-qtest null -nographic -vga qxl -qtest stdio -nodefaults\
-drive if=none,id=drive0,file=null-co://,file.read-zeroes=on,format=raw\
-drive
Public bug reported:
The following program (also attached) deadlocks when run under QEMU user
on Linux.
#include
#include
#include
#include
#include
#include
#define NUM_THREADS 100
#define NUM_FORKS 10
pthread_barrier_t barrier;
void *t(void *arg) {
for (int i = 0; i < NUM_FORKS;
Public bug reported:
Hello,
Here is a QTest Reproducer:
cat << EOF | ./i386-softmmu/qemu-system-i386 -M pc,accel=qtest\
-qtest null -nographic -vga qxl -qtest stdio -nodefaults\
-drive if=none,id=drive0,file=null-co://,file.read-zeroes=on,format=raw\
-drive
On 10/07/2020 22.03, Markus Armbruster wrote:
[...]
> With -m slow, we test 2 * #machines * #devices introspections,
> i.e. from 132 (tricore) to over 10k (ppc 13046, ppc64 23426, arm
> 82708, aarch64 89760). Median is ~1600, sum is ~260k.
>
> Except we actually test just 89k now,
On Tue, Jul 7, 2020 at 3:21 PM Philippe Mathieu-Daudé
wrote:
> In the next commit we won't allow SD card images with invalid
> size (not aligned to a power of 2). Prepare the tests: add the
> pow2ceil() and image_pow2ceil_truncate() methods and truncate
> the images of the tests using SD cards.
SD cards need to have a size of a power of two. This commit updates
the Orange Pi machine documentation to include instructions for
resizing downloaded images using the qemu-img command.
Signed-off-by: Niek Linnenbank
---
docs/system/arm/orangepi.rst | 16 +---
1 file changed, 13
From: Mark Wood-Patrick
Sent: Wednesday, July 1, 2020 11:26 AM
To: qemu-devel@nongnu.org
Cc: Mark Wood-Patrick
Subject: Seeing a problem in multi cpu runs where memory mapped pcie device
register reads are returning incorrect values
Background
I have a test environment which runs QEMU 4.2
The script 'bench_write_req.py' allows comparing performances of write
request for two qemu-img binary files.
An example with (qemu-img binary 1) and without (qemu-img binary 2) the
applied patch "qcow2: skip writing zero buffers to empty COW areas"
(git commit ID: c8bb23cbdbe32f5) has the
Add 'empty_image' parameter to the function bench_write_req() and to
the test cases that will allow writing to the non-empty clusters of the
image if the 'empty_image' parameter set to False.
Signed-off-by: Andrey Shinkevich
---
scripts/simplebench/bench_write_req.py | 27
The script 'bench_write_req.py' allows comparing performances of write request
for two
qemu-img binary files. If you made a change in QEMU code and want to check the
write
requests performance, you will want to build two qemu-img binary files with and
without
your change. Then you specify paths
Add a test case with writhing data unaligned to the image clusters.
This case does not involve the COW optimization introduced with the
patch "qcow2: skip writing zero buffers to empty COW areas"
(git commit ID: c8bb23cbdbe32f5).
Signed-off-by: Andrey Shinkevich
---
The script 'bench_write_req.py' allows comparing performances of write
request for two qemu-img binary files.
An example with (qemu-img binary 1) and without (qemu-img binary 2) the
applied patch "qcow2: skip writing zero buffers to empty COW areas"
(git commit ID: c8bb23cbdbe32f5) has the
Add 'empty_image' parameter to the function bench_write_req() and to
the test cases that will allow writing to the non-empty clusters of the
image if the 'empty_image' parameter set to False.
Signed-off-by: Andrey Shinkevich
---
scripts/simplebench/bench_write_req.py | 27
The script 'bench_write_req.py' allows comparing performances of write request
for two
qemu-img binary files. If you made a change in QEMU code and want to check the
write
requests performance, you will want to build two qemu-img binary files with and
without
your change. Then you specify paths
Add a test case with writhing data unaligned to the image clusters.
This case does not involve the COW optimization introduced with the
patch "qcow2: skip writing zero buffers to empty COW areas"
(git commit ID: c8bb23cbdbe32f5).
Signed-off-by: Andrey Shinkevich
---
On 11.07.2020 16:05, Vladimir Sementsov-Ogievskiy wrote:
26.06.2020 17:31, Andrey Shinkevich wrote:
The script 'bench_write_req.py' allows comparing performances of write
request for two qemu-img binary files.
An example with (qemu-img binary 1) and without (qemu-img binary 2) the
applied patch
On 12/07/20 12:00, Claudio Fontana wrote:
> Note: only the === -blockdev with a backing file === part of test 267 fails.
> -blockdev with NBD is ok, like all the rest.
>
>
> Interesting facts about s390 in particular: its save/load code includes the
> transfer of "storage keys",
> which
Your pipeline has failed.
Project: QEMU ( https://gitlab.com/qemu-project/qemu )
Branch: master ( https://gitlab.com/qemu-project/qemu/-/commits/master )
Commit: d3449830 (
https://gitlab.com/qemu-project/qemu/-/commit/d34498309cff7560ac90c422c56e3137e6a64b19
)
Commit Message: Merge
> -Original Message-
> From: Peter Maydell
> Sent: Sunday, July 12, 2020 2:50 AM
> To: Wu, Wentong
> Cc: QEMU Developers ; QEMU Trivial
> ; Chris Wulff ; Marek Vasut
>
> Subject: Re: [PATCH v2 1/4] target/nios2: add DISAS_NORETURN case for nothing
> more to generate
>
> On Fri, 10
On Sat, 11 Jul 2020 at 10:07, Philippe Mathieu-Daudé wrote:
>
> Since v2:
>
> Removed incorrect cpu_to_le32() call.
>
> Since v1:
>
> Fixed issue on big-endian host reported by Peter Maydell.
>
> Possible false-positives from checkpatch:
>
> WARNING: added, moved or deleted file(s), does
macos guests no longer boot after commit
5d971f9e672507210e77d020d89e0e89165c8fc9
acpi-tmr needs 2 byte memory accesses, so breaks as that commit only
allows 4 bytes.
Fixes: 5d971f9e672507210e7 (memory: Revert "memory: accept mismatching
sizes in memory_region_access_valid")
Buglink:
Started working on this again...
** Changed in: qemu (Ubuntu Bionic)
Status: Triaged => In Progress
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https://bugs.launchpad.net/bugs/1805256
Title:
qemu-img hangs on
> This happened to me as well, but I managed to find a solution, if I
ban the xpad driver through modprobe.d, then the problem disappear.
Thanks, that's very interesting (and useful, although nowadays I use the
BT connection).
--
You received this bug notification because you are a member of
This happened to me as well, but I managed to find a solution, if I ban
the xpad driver through modprobe.d, then the problem disappear.
I added the following line:
blacklist xpad
To this file: /etc/modprobe.d/vfio.conf, rebooted, and then I could use
my Xbox One S controller with Qemu, I am
I think we should add debugging patch by Mark to qemu too, — I suspect
there will be more cases like this, since this check were turned off for
a few years. Maybe not as printf's but as logging, I dunno, but the
info it collects is really a must-have.
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urgh, that was complicated, think i got it right!
need to look for "[PATCH] Allow acpi-tmr size=2" to show up in qemu-
devel
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https://bugs.launchpad.net/bugs/1886318
Title:
Qemu
On Fri, 2020-07-10 at 11:50 +0200, Max Reitz wrote:
> We should check whether the user-specified node-name actually refers to
> a node. The simplest way to do that is to use bdrv_lookup_bs() instead
> of bdrv_find_node() (the former wraps the latter, and produces an error
> message if necessary).
This patch adds an empty handling for PASID-based Device-TLB
invalidation. For now it is enough as it is not necessary to
propagate it to host for passthru device and also there is no
emulated device has device tlb.
Cc: Kevin Tian
Cc: Jacob Pan
Cc: Peter Xu
Cc: Yi Sun
Cc: Paolo Bonzini
Cc:
Intel VT-d 3.0 introduces scalable mode, and it has a bunch of capabilities
related to scalable mode translation, thus there are multiple combinations.
While this vIOMMU implementation wants simplify it for user by providing
typical combinations. User could config it by "x-scalable-mode" option.
This patch adds the basic PASID-based iotlb (piotlb) invalidation
support. piotlb is used during walking Intel VT-d 1st level page
table. This patch only adds the basic processing. Detailed handling
will be added in next patch.
Cc: Kevin Tian
Cc: Jacob Pan
Cc: Peter Xu
Cc: Yi Sun
Cc: Paolo
This patch propagates PASID-based iotlb invalidation to host.
Intel VT-d 3.0 supports nested translation in PASID granular.
Guest SVA support could be implemented by configuring nested
translation on specific PASID. This is also known as dual stage
DMA translation.
Under such configuration,
RID_PASID field was introduced in VT-d 3.0 spec, it is used
for DMA requests w/o PASID in scalable mode VT-d. It is also
known as IOVA. And in VT-d 3.1 spec, there is definition on it:
"Implementations not supporting RID_PASID capability
(ECAP_REG.RPS is 0b), use a PASID value of 0 to perform
This patch adds flush_stage1_cache() definition in HostIOMUContextClass.
And adds corresponding implementation in VFIO. This is to expose a way
for vIOMMU to flush stage-1 cache in host side since guest owns stage-1
translation structures in dual stage DMA translation configuration.
Cc: Kevin
This patch captures the guest PASID table entry modifications and
propagates the changes to host to setup dual stage DMA translation.
The guest page table is configured as 1st level page table (GVA->GPA)
whose translation result would further go through host VT-d 2nd
level page table(GPA->HPA)
This patch replays guest pasid bindings after context cache
invalidation. This is a behavior to ensure safety. Actually,
programmer should issue pasid cache invalidation with proper
granularity after issuing a context cache invalidation.
Cc: Kevin Tian
Cc: Jacob Pan
Cc: Peter Xu
Cc: Yi Sun
For assigned devices, Intel vIOMMU which wants to build DMA protection
based on physical IOMMU nesting paging should check the IOMMU nesting
support in host side. The host will return IOMMU nesting cap info to
user-space (e.g. VFIO returns IOMMU nesting cap info for nesting type
IOMMU). vIOMMU
This patch adds virtual command support to Intel vIOMMU per
Intel VT-d 3.1 spec. And adds two virtual commands: allocate
pasid and free pasid.
Cc: Kevin Tian
Cc: Jacob Pan
Cc: Peter Xu
Cc: Yi Sun
Cc: Paolo Bonzini
Cc: Richard Henderson
Cc: Eduardo Habkost
Reviewed-by: Peter Xu
This patch adds bind_stage1_pgtbl() definition in HostIOMMUContextClass,
also adds corresponding implementation in VFIO. This is to expose a way
for vIOMMU to setup dual stage DMA translation for passthru devices on
hardware.
Cc: Kevin Tian
Cc: Jacob Pan
Cc: Peter Xu
Cc: Eric Auger
Cc: Yi Sun
This patch defines vfio_host_iommu_context_info, implements the PASID
alloc/free hooks defined in HostIOMMUContextClass.
Cc: Kevin Tian
Cc: Jacob Pan
Cc: Peter Xu
Cc: Eric Auger
Cc: Yi Sun
Cc: David Gibson
Cc: Alex Williamson
Signed-off-by: Liu Yi L
---
hw/vfio/common.c
For nesting IOMMU translation capable platforms, vIOMMUs running on
such system could be implemented upon physical IOMMU nested paging
(VFIO case). vIOMMU advertises such implementation by "want_nested"
attribute to PCIe devices (e.g. VFIO PCI). Once "want_nested" is
satisfied, device (VFIO case)
This patch adds a PASID cache management infrastructure based on
new added structure VTDPASIDAddressSpace, which is used to track
the PASID usage and future PASID tagged DMA address translation
support in vIOMMU.
struct VTDPASIDAddressSpace {
VTDBus *vtd_bus;
uint8_t devfn;
Currently, many platform vendors provide the capability of dual stage
DMA address translation in hardware. For example, nested translation
on Intel VT-d scalable mode, nested stage translation on ARM SMMUv3,
and etc. In dual stage DMA address translation, there are two stages
address translation,
In this patch, QEMU firstly gets iommu info from kernel to check the
supported capabilities by a VFIO_IOMMU_TYPE1_NESTING iommu. And inits
HostIOMMUContet instance.
For vfio-pci devices, it could use pci_device_set/unset_iommu() to
expose host iommu context to vIOMMU emulators. vIOMMU emulators
This patch adds PASID cache invalidation handling. When guest enabled
PASID usages (e.g. SVA), guest software should issue a proper PASID
cache invalidation when caching-mode is exposed. This patch only adds
the draft handling of pasid cache invalidation. Detailed handling will
be added in
VFIO needs to check VFIO_TYPE1_NESTING_IOMMU support with Kernel before
further using it. e.g. requires to check IOMMU UAPI support.
Referred patch from Eric Auger: https://patchwork.kernel.org/patch/11040499/
Cc: Kevin Tian
Cc: Jacob Pan
Cc: Peter Xu
Cc: Eric Auger
Cc: Yi Sun
Cc: David
This patch adds set/unset_iommu_context() impelementation in Intel
vIOMMU. PCIe devices (VFIO case) sets HostIOMMUContext to vIOMMU as
an ack of vIOMMU's "want_nested" attribute. Thus vIOMMU could build
DMA protection based on nested paging of host IOMMU.
Cc: Kevin Tian
Cc: Jacob Pan
Cc: Peter
Return vIOMMU attribute to caller. e.g. VFIO call via PCI layer.
Cc: Kevin Tian
Cc: Jacob Pan
Cc: Peter Xu
Cc: Yi Sun
Cc: Paolo Bonzini
Cc: Richard Henderson
Cc: Eduardo Habkost
Signed-off-by: Liu Yi L
---
hw/i386/intel_iommu.c | 23 +++
1 file changed, 23
This patch passes the nesting requirement into vfio_get_group() to
indicate whether VFIO_TYPE1_NESTING_IOMMU is required.
Cc: Kevin Tian
Cc: Jacob Pan
Cc: Peter Xu
Cc: Eric Auger
Cc: Yi Sun
Cc: David Gibson
Cc: Alex Williamson
Signed-off-by: Liu Yi L
---
hw/vfio/ap.c | 2
This patch adds pci_device_get_iommu_attr() to get vIOMMU attributes.
e.g. if nesting IOMMU wanted.
Cc: Kevin Tian
Cc: Jacob Pan
Cc: Peter Xu
Cc: Eric Auger
Cc: Yi Sun
Cc: David Gibson
Cc: Michael S. Tsirkin
Signed-off-by: Liu Yi L
---
hw/pci/pci.c | 35
This patch modifies pci_setup_iommu() to set PCIIOMMUOps
instead of setting PCIIOMMUFunc. PCIIOMMUFunc is used to
get an address space for a PCI device in vendor specific
way. The PCIIOMMUOps still offers this functionality. But
using PCIIOMMUOps leaves space to add more iommu related
vendor
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