Re: [PATCH 1/1] x86/kvm/svm: Implement support for PSFD

2021-04-08 Thread Tom Lendacky
On 4/7/21 2:45 PM, Ramakrishna Saripalli wrote: > From: Ramakrishna Saripalli > > Expose Predictive Store Forwarding capability to guests. > Guests enable or disable PSF via SPEC_CTRL MSR. > > Signed-off-by: Ramakrishna Saripalli > --- > arch/x86/kvm/cpuid.c | 4 +++- > 1 file changed, 3

Re: [PATCH 1/1] x86/kvm/svm: Implement support for PSFD

2021-04-07 Thread Sean Christopherson
On Wed, Apr 07, 2021, Ramakrishna Saripalli wrote: > From: Ramakrishna Saripalli > > Expose Predictive Store Forwarding capability to guests. Technically KVM is advertising the capability to userspace, e.g. userspace can expose the feature to the guest without this patch. > Guests enable or

[PATCH 1/1] x86/kvm/svm: Implement support for PSFD

2021-04-07 Thread Ramakrishna Saripalli
From: Ramakrishna Saripalli Expose Predictive Store Forwarding capability to guests. Guests enable or disable PSF via SPEC_CTRL MSR. Signed-off-by: Ramakrishna Saripalli --- arch/x86/kvm/cpuid.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/arch/x86/kvm/cpuid.c