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Tue, 09 Jul 2024 08:52:27 -0700 (PDT) From: Alejandro Vallejo To: Xen-devel Cc: Alejandro Vallejo , Jan Beulich , Andrew Cooper , =?UTF-8?q?Roger=20Pau=20Monn=C3=A9?= Subject: [PATCH for-4.20 1/4] x86/xstate: Use compression check helper in xstate_all() Date: Tue, 9 Jul 2024 16:52:20 +0100 Message-Id: X-Mailer: git-send-email 2.34.1 In-Reply-To: References: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-ZohoMail-DKIM: pass (identity @cloud.com) X-ZM-MESSAGEID: 1720540370512116600 Content-Type: text/plain; charset="utf-8" Minor refactor to make xstate_all() use a helper rather than poking directly into the XSAVE header. No functional change Signed-off-by: Alejandro Vallejo Acked-by: Jan Beulich --- xen/arch/x86/include/asm/xstate.h | 15 +++++++-------- 1 file changed, 7 insertions(+), 8 deletions(-) diff --git a/xen/arch/x86/include/asm/xstate.h b/xen/arch/x86/include/asm/x= state.h index f4a8e5f814a0..f0eeb13b87a4 100644 --- a/xen/arch/x86/include/asm/xstate.h +++ b/xen/arch/x86/include/asm/xstate.h @@ -122,6 +122,12 @@ static inline uint64_t xgetbv(unsigned int index) return lo | ((uint64_t)hi << 32); } =20 +static inline bool __nonnull(1) +xsave_area_compressed(const struct xsave_struct *xsave_area) +{ + return xsave_area->xsave_hdr.xcomp_bv & XSTATE_COMPACTION_ENABLED; +} + static inline bool xstate_all(const struct vcpu *v) { /* @@ -129,15 +135,8 @@ static inline bool xstate_all(const struct vcpu *v) * (in the legacy region of xsave area) are fixed, so saving * XSTATE_FP_SSE will not cause overwriting problem with XSAVES/XSAVEC. */ - return (v->arch.xsave_area->xsave_hdr.xcomp_bv & - XSTATE_COMPACTION_ENABLED) && + return xsave_area_compressed(v->arch.xsave_area) && (v->arch.xcr0_accum & XSTATE_LAZY & ~XSTATE_FP_SSE); } =20 -static inline bool __nonnull(1) -xsave_area_compressed(const struct xsave_struct *xsave_area) -{ - return xsave_area->xsave_hdr.xcomp_bv & XSTATE_COMPACTION_ENABLED; -} - #endif /* __ASM_XSTATE_H */ --=20 2.34.1