From 3ccaa174faeb8fbd68f79c670e32c6689cfc7ffc Mon Sep 17 00:00:00 2001 From: Andrew Cooper Date: Thu, 10 Jun 2021 11:02:47 +0100 Subject: [PATCH] x86/platform: Permit reading the TSX control MSRs via XENPF_resource_op We are going to want this to write some tests with. Signed-off-by: Andrew Cooper Reviewed-by: Jan Beulich --- xen/arch/x86/platform_hypercall.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/xen/arch/x86/platform_hypercall.c b/xen/arch/x86/platform_hypercall.c index 41d8e59563..284c2dfb9e 100644 --- a/xen/arch/x86/platform_hypercall.c +++ b/xen/arch/x86/platform_hypercall.c @@ -74,6 +74,12 @@ static bool msr_read_allowed(unsigned int msr) case MSR_IA32_TSC: return true; + + case MSR_TSX_FORCE_ABORT: + return cpu_has_tsx_force_abort; + + case MSR_TSX_CTRL: + return cpu_has_tsx_ctrl; } if ( ppin_msr && msr == ppin_msr ) -- 2.30.2