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d="scan'208";a="4010750" From: Andrew Cooper To: Xen-devel Date: Wed, 7 Aug 2019 12:34:39 +0100 Message-ID: <20190807113439.12802-1-andrew.cooper3@citrix.com> X-Mailer: git-send-email 2.11.0 MIME-Version: 1.0 Subject: [Xen-devel] [PATCH] x86/boot: Set Accessed bits in boot_cpu_{, compat_}gdt_table[] X-BeenThere: xen-devel@lists.xenproject.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Cc: Andrew Cooper , Wei Liu , Jan Beulich , =?UTF-8?q?Roger=20Pau=20Monn=C3=A9?= Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Errors-To: xen-devel-bounces@lists.xenproject.org Sender: "Xen-devel" There is no point causing the CPU to performed a locked update of the descriptors on first use. Reported-by: Jan Beulich Signed-off-by: Andrew Cooper Reviewed-by: Jan Beulich --- CC: Jan Beulich CC: Wei Liu CC: Roger Pau Monn=C3=A9 --- xen/arch/x86/boot/x86_64.S | 26 +++++++++++++------------- 1 file changed, 13 insertions(+), 13 deletions(-) diff --git a/xen/arch/x86/boot/x86_64.S b/xen/arch/x86/boot/x86_64.S index cf47e019f5..0eaf9d2a07 100644 --- a/xen/arch/x86/boot/x86_64.S +++ b/xen/arch/x86/boot/x86_64.S @@ -55,13 +55,13 @@ GLOBAL(stack_start) .align PAGE_SIZE, 0 GLOBAL(boot_cpu_gdt_table) .quad 0x0000000000000000 /* unused */ - .quad 0x00af9a000000ffff /* 0xe008 ring 0 code, 64-bit mode = */ - .quad 0x00cf92000000ffff /* 0xe010 ring 0 data = */ + .quad 0x00af9b000000ffff /* 0xe008 ring 0 code, 64-bit mode = */ + .quad 0x00cf93000000ffff /* 0xe010 ring 0 data = */ .quad 0x0000000000000000 /* reserved = */ - .quad 0x00cffa000000ffff /* 0xe023 ring 3 code, compatibility = */ - .quad 0x00cff2000000ffff /* 0xe02b ring 3 data = */ - .quad 0x00affa000000ffff /* 0xe033 ring 3 code, 64-bit mode = */ - .quad 0x00cf9a000000ffff /* 0xe038 ring 0 code, compatibility = */ + .quad 0x00cffb000000ffff /* 0xe023 ring 3 code, compatibility = */ + .quad 0x00cff3000000ffff /* 0xe02b ring 3 data = */ + .quad 0x00affb000000ffff /* 0xe033 ring 3 code, 64-bit mode = */ + .quad 0x00cf9b000000ffff /* 0xe038 ring 0 code, compatibility = */ .fill (PER_CPU_GDT_ENTRY - __HYPERVISOR_CS32 / 8 - 1), 8, 0 .quad 0x0000910000000000 /* per-CPU entry (limit =3D=3D cpu) = */ =20 @@ -70,13 +70,13 @@ GLOBAL(boot_cpu_gdt_table) /* (compatibility) machine->physical mapping table lives there. = */ GLOBAL(boot_cpu_compat_gdt_table) .quad 0x0000000000000000 /* unused */ - .quad 0x00af9a000000ffff /* 0xe008 ring 0 code, 64-bit mode = */ - .quad 0x00cf92000000ffff /* 0xe010 ring 0 data = */ - .quad 0x00cfba000000ffff /* 0xe019 ring 1 code, compatibility = */ - .quad 0x00cfb2000000ffff /* 0xe021 ring 1 data = */ - .quad 0x00cffa000000ffff /* 0xe02b ring 3 code, compatibility = */ - .quad 0x00cff2000000ffff /* 0xe033 ring 3 data = */ - .quad 0x00cf9a000000ffff /* 0xe038 ring 0 code, compatibility = */ + .quad 0x00af9b000000ffff /* 0xe008 ring 0 code, 64-bit mode = */ + .quad 0x00cf93000000ffff /* 0xe010 ring 0 data = */ + .quad 0x00cfbb000000ffff /* 0xe019 ring 1 code, compatibility = */ + .quad 0x00cfb3000000ffff /* 0xe021 ring 1 data = */ + .quad 0x00cffb000000ffff /* 0xe02b ring 3 code, compatibility = */ + .quad 0x00cff3000000ffff /* 0xe033 ring 3 data = */ + .quad 0x00cf9b000000ffff /* 0xe038 ring 0 code, compatibility = */ .fill (PER_CPU_GDT_ENTRY - __HYPERVISOR_CS32 / 8 - 1), 8, 0 .quad 0x0000910000000000 /* per-CPU entry (limit =3D=3D cpu) = */ .align PAGE_SIZE, 0 --=20 2.11.0 _______________________________________________ Xen-devel mailing list Xen-devel@lists.xenproject.org https://lists.xenproject.org/mailman/listinfo/xen-devel