[PULL 06/19] whpx: i386: skip TSC read for MMIO exits

Paolo Bonzini posted 19 patches 1 week, 1 day ago
There is a newer version of this series
[PULL 06/19] whpx: i386: skip TSC read for MMIO exits
Posted by Paolo Bonzini 1 week, 1 day ago
From: Mohamed Mediouni <mohamed@unpredictable.fr>

The TSC value isn't needed for vmexit processing.

Signed-off-by: Mohamed Mediouni <mohamed@unpredictable.fr>
Link: https://lore.kernel.org/r/20260324151323.74473-4-mohamed@unpredictable.fr
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 target/i386/whpx/whpx-all.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/target/i386/whpx/whpx-all.c b/target/i386/whpx/whpx-all.c
index 8f1835ee95c..ac03445d9da 100644
--- a/target/i386/whpx/whpx-all.c
+++ b/target/i386/whpx/whpx-all.c
@@ -606,7 +606,7 @@ void whpx_get_registers(CPUState *cpu, WHPXStateLevel level)
 
     assert(cpu_is_stopped(cpu) || qemu_cpu_is_self(cpu));
 
-    if (!env->tsc_valid) {
+    if (level > WHPX_LEVEL_FAST_RUNTIME_STATE && !env->tsc_valid) {
         whpx_get_tsc(cpu);
         env->tsc_valid = !runstate_is_running();
     }
-- 
2.53.0