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d="scan'208";a="45958353" From: Andrew Cooper To: Xen-devel CC: Igor Druzhinin , Edwin Torok , Andrew Cooper , "Jan Beulich" , =?UTF-8?q?Roger=20Pau=20Monn=C3=A9?= , Wei Liu Subject: [PATCH 2/5] x86/platform: Permit reading the TSX control MSRs via XENPF_resource_op Date: Fri, 11 Jun 2021 17:36:24 +0100 Message-ID: <20210611163627.4878-3-andrew.cooper3@citrix.com> X-Mailer: git-send-email 2.11.0 In-Reply-To: <20210611163627.4878-1-andrew.cooper3@citrix.com> References: <20210611163627.4878-1-andrew.cooper3@citrix.com> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable X-ZohoMail-DKIM: pass (identity @citrix.com) We are going to want this to write some tests with. Signed-off-by: Andrew Cooper Reviewed-by: Jan Beulich --- CC: Jan Beulich CC: Roger Pau Monn=C3=A9 CC: Wei Liu --- 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_hype= rcall.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) =20 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; } =20 if ( ppin_msr && msr =3D=3D ppin_msr ) --=20 2.11.0