More work is required before LWP details can be read straight out of the
cpuid_policy block, but in the meantime hvm_cpuid() wants to disappear so
update the code to use the newer interface.
Signed-off-by: Andrew Cooper <andrew.coop...@citrix.com>
Reviewed-by: Boris Ostrovsky <boris.ostrov...@oracle.com>
Reviewed-by: Jan Beulich <jbeul...@suse.com>
---
v2:
* Reduce scope of res
---
xen/arch/x86/hvm/svm/svm.c | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/xen/arch/x86/hvm/svm/svm.c b/xen/arch/x86/hvm/svm/svm.c
index e9c6d69..86dcffc 100644
--- a/xen/arch/x86/hvm/svm/svm.c
+++ b/xen/arch/x86/hvm/svm/svm.c
@@ -926,17 +926,18 @@ static inline void svm_lwp_load(struct vcpu *v)
/* Update LWP_CFG MSR (0xc0000105). Return -1 if error; otherwise returns 0. */
static int svm_update_lwp_cfg(struct vcpu *v, uint64_t msr_content)
{
- unsigned int edx;
uint32_t msr_low;
static uint8_t lwp_intr_vector;
if ( xsave_enabled(v) && cpu_has_lwp )
{
- hvm_cpuid(0x8000001c, NULL, NULL, NULL, &edx);
+ struct cpuid_leaf res;
+
+ guest_cpuid(v, 0x8000001c, 0, &res);
msr_low = (uint32_t)msr_content;
/* generate #GP if guest tries to turn on unsupported features. */
- if ( msr_low & ~edx)
+ if ( msr_low & ~res.d)
return -1;
v->arch.hvm_svm.guest_lwp_cfg = msr_content;
--
2.1.4
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