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| author | Andrew Cooper <andrew.cooper3@citrix.com> | 2019-07-15 17:16:41 +0200 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2019-07-22 10:12:33 +0200 |
| commit | 83b584d9c6a1494170abd3a8b24f41939b23d625 (patch) | |
| tree | d1cd396adbb7280482b290a423d09005b4dd0d6d /arch/x86/include/asm/suspend_64.h | |
| parent | x86/apic: Initialize TPR to block interrupts 16-31 (diff) | |
| download | linux-83b584d9c6a1494170abd3a8b24f41939b23d625.tar.xz linux-83b584d9c6a1494170abd3a8b24f41939b23d625.zip | |
x86/paravirt: Drop {read,write}_cr8() hooks
There is a lot of infrastructure for functionality which is used
exclusively in __{save,restore}_processor_state() on the suspend/resume
path.
cr8 is an alias of APIC_TASKPRI, and APIC_TASKPRI is saved/restored by
lapic_{suspend,resume}(). Saving and restoring cr8 independently of the
rest of the Local APIC state isn't a clever thing to be doing.
Delete the suspend/resume cr8 handling, which shrinks the size of struct
saved_context, and allows for the removal of both PVOPS.
Signed-off-by: Andrew Cooper <andrew.cooper3@citrix.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Juergen Gross <jgross@suse.com>
Link: https://lkml.kernel.org/r/20190715151641.29210-1-andrew.cooper3@citrix.com
Diffstat (limited to 'arch/x86/include/asm/suspend_64.h')
| -rw-r--r-- | arch/x86/include/asm/suspend_64.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/include/asm/suspend_64.h b/arch/x86/include/asm/suspend_64.h index a7af9f53c0cb..35bb35d28733 100644 --- a/arch/x86/include/asm/suspend_64.h +++ b/arch/x86/include/asm/suspend_64.h @@ -34,7 +34,7 @@ struct saved_context { */ unsigned long kernelmode_gs_base, usermode_gs_base, fs_base; - unsigned long cr0, cr2, cr3, cr4, cr8; + unsigned long cr0, cr2, cr3, cr4; u64 misc_enable; bool misc_enable_saved; struct saved_msrs saved_msrs; |