[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

[Xen-changelog] [xen stable-4.11] x86/boot: Set Accessed bits in boot_cpu_{, compat_}gdt_table[]



commit 9b91beca34176a31b8e815f1f64472a740e5d94e
Author:     Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
AuthorDate: Mon Sep 23 14:35:07 2019 +0200
Commit:     Jan Beulich <jbeulich@xxxxxxxx>
CommitDate: Mon Sep 23 14:35:07 2019 +0200

    x86/boot: Set Accessed bits in boot_cpu_{,compat_}gdt_table[]
    
    There is no point causing the CPU to performed a locked update of the
    descriptors on first use.
    
    Reported-by: Jan Beulich <jbeulich@xxxxxxxx>
    Signed-off-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
    Reviewed-by: Jan Beulich <jbeulich@xxxxxxxx>
    master commit: af292b41e9edc0a87f0205ece833e64808ec3883
    master date: 2019-08-07 13:34:56 +0100
---
 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 == cpu)      */
 
@@ -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 == cpu)      */
         .align PAGE_SIZE, 0
--
generated by git-patchbot for /home/xen/git/xen.git#stable-4.11

_______________________________________________
Xen-changelog mailing list
Xen-changelog@xxxxxxxxxxxxxxxxxxxx
https://lists.xenproject.org/xen-changelog

 


Rackspace

Lists.xenproject.org is hosted with RackSpace, monitoring our
servers 24x7x365 and backed by RackSpace's Fanatical Support®.