On 12/07/2018 11:18, Robert Hoo wrote:
>>> And you'd like to set IA32_ARCH_CAPABILITIES.RSBA by default in qemu or
>>> kvm layer?
>> Probably we need to make this decision in QEMU. If KVM set RSBA
>> automatically on .get_msr_feature(), QEMU won't be able to
>> differentiate a host with RSBA set
On Tue, 2018-07-03 at 08:00 -0300, Eduardo Habkost wrote:
> On Tue, Jul 03, 2018 at 03:35:13PM +0800, Robert Hoo wrote:
> > On Thu, 2018-06-28 at 15:28 -0300, Eduardo Habkost wrote:
> > > On Wed, Jun 27, 2018 at 07:27:21PM +0800, Robert Hoo wrote:
> > > > Support of IA32_PRED_CMD MSR already be
On Tue, Jul 03, 2018 at 03:35:13PM +0800, Robert Hoo wrote:
> On Thu, 2018-06-28 at 15:28 -0300, Eduardo Habkost wrote:
> > On Wed, Jun 27, 2018 at 07:27:21PM +0800, Robert Hoo wrote:
> > > Support of IA32_PRED_CMD MSR already be enumerated by same CPUID bit as
> > > SPEC_CTRL.
> > >
> > >
On Thu, 2018-06-28 at 15:28 -0300, Eduardo Habkost wrote:
> On Wed, Jun 27, 2018 at 07:27:21PM +0800, Robert Hoo wrote:
> > Support of IA32_PRED_CMD MSR already be enumerated by same CPUID bit as
> > SPEC_CTRL.
> >
> > Signed-off-by: Robert Hoo
>
> Based on kernel commit 1eaafe91, it looks like
On Wed, Jun 27, 2018 at 07:27:21PM +0800, Robert Hoo wrote:
> Support of IA32_PRED_CMD MSR already be enumerated by same CPUID bit as
> SPEC_CTRL.
>
> Signed-off-by: Robert Hoo
Based on kernel commit 1eaafe91, it looks like we must always set
IA32_ARCH_CAPABILITIES.RSBA[bit 2] unless we're
Support of IA32_PRED_CMD MSR already be enumerated by same CPUID bit as
SPEC_CTRL.
Signed-off-by: Robert Hoo
---
target/i386/cpu.c | 2 +-
target/i386/cpu.h | 1 +
2 files changed, 2 insertions(+), 1 deletion(-)
diff --git a/target/i386/cpu.c b/target/i386/cpu.c
index e6c2f8a..953098c 100644
