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Re: [XEN PATCH v2 1/2] x86/hvm: introduce config option for ACPI PM timer
- To: xen-devel@xxxxxxxxxxxxxxxxxxxx
- From: Sergiy Kibrik <sergiy_kibrik@xxxxxxxx>
- Date: Wed, 6 Nov 2024 18:17:36 +0200
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- Cc: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>, Roger Pau Monné <roger.pau@xxxxxxxxxx>, Stefano Stabellini <sstabellini@xxxxxxxxxx>, Jan Beulich <jbeulich@xxxxxxxx>
- Delivery-date: Wed, 06 Nov 2024 16:17:55 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
06.11.24 12:14, Sergiy Kibrik:
diff --git a/xen/arch/x86/domain.c b/xen/arch/x86/domain.c
index 78a13e6812..b340818ee2 100644
--- a/xen/arch/x86/domain.c
+++ b/xen/arch/x86/domain.c
@@ -742,11 +742,16 @@ int arch_sanitise_domain_config(struct
xen_domctl_createdomain *config)
static bool emulation_flags_ok(const struct domain *d, uint32_t emflags)
{
-#ifdef CONFIG_HVM
+ const uint32_t disabled_emu_mask = X86_EMU_PM;
+
+#if defined(CONFIG_X86_HVM_PMTIMER)
/* This doesn't catch !CONFIG_HVM case but it is better than nothing */
BUILD_BUG_ON(X86_EMU_ALL != XEN_X86_EMU_ALL);
#endif
+ if ( emflags & disabled_emu_mask )
+ return false;
+
oops, disregard this chunk please, it should be:
if ( (emflags & X86_EMU_ALL) != emflags )
return false;
with disabled_emu_mask completely removed.
if ( is_hvm_domain(d) )
{
if ( is_hardware_domain(d) &&
-Sergiy
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