Re: [Xen-devel] [PATCH v2 4/6] hvm/mtrr: copy hardware state for Dom0

>>> On 16.05.18 at 13:58, wrote: > On Wed, May 16, 2018 at 02:47:39AM -0600, Jan Beulich wrote: >> >>> On 15.05.18 at 16:36, wrote: >> > --- a/xen/arch/x86/hvm/mtrr.c >> > +++ b/xen/arch/x86/hvm/mtrr.c >> > @@ -185,6 +185,30 @@ int hvm_vcpu_cacheattr_init(struct vcpu *v) >> > ((uint64_t)

Re: [Xen-devel] [PATCH v2 4/6] hvm/mtrr: copy hardware state for Dom0

On Wed, May 16, 2018 at 02:47:39AM -0600, Jan Beulich wrote: > >>> On 15.05.18 at 16:36, wrote: > > --- a/xen/arch/x86/hvm/mtrr.c > > +++ b/xen/arch/x86/hvm/mtrr.c > > @@ -185,6 +185,30 @@ int hvm_vcpu_cacheattr_init(struct vcpu *v) > > ((uint64_t)PAT_TYPE_UC_MINUS << 48) | /* PAT6:

Re: [Xen-devel] [PATCH v2 4/6] hvm/mtrr: copy hardware state for Dom0

>>> On 15.05.18 at 16:36, wrote: > --- a/xen/arch/x86/hvm/mtrr.c > +++ b/xen/arch/x86/hvm/mtrr.c > @@ -185,6 +185,30 @@ int hvm_vcpu_cacheattr_init(struct vcpu *v) > ((uint64_t)PAT_TYPE_UC_MINUS << 48) | /* PAT6: UC- */ > ((uint64_t)PAT_TYPE_UNCACHABLE << 56); /* PAT7:

[Xen-devel] [PATCH v2 4/6] hvm/mtrr: copy hardware state for Dom0

Copy the state found on the hardware when creating a PVH Dom0. Since the memory map provided to a PVH Dom0 is based on the native one using the same set of MTRR ranges should provide Dom0 with a sane MTRR state without having to manually build it in Xen. Signed-off-by: Roger Pau Monné --- Cc: Jan