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Juergen Gross ab234a260b x86/pv: Rework arch_local_irq_restore() to not use popf 
POPF is a rather expensive operation, so don't use it for restoring
irq flags. Instead, test whether interrupts are enabled in the flags
parameter and enable interrupts via STI in that case.

This results in the restore_fl paravirt op to be no longer needed.

Suggested-by: Andy Lutomirski <luto@kernel.org>
Signed-off-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Link: https://lkml.kernel.org/r/20210120135555.32594-7-jgross@suse.com
2021-02-10 12:36:45 +01:00
..
apic.c
x86/apic: Cleanup destination mode
2020-10-28 20:26:25 +01:00
debugfs.c
x86: xen: no need to check return value of debugfs_create functions
2019-06-03 15:49:07 +02:00
debugfs.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
efi.c
efi: x86/xen: switch to efi_get_secureboot_mode helper
2020-11-17 15:09:32 +01:00
enlighten_hvm.c
x86/xen: Don't register Xen IPIs when they aren't going to be used
2021-01-13 16:12:07 +01:00
enlighten_pv.c
x86/pv: Rework arch_local_irq_restore() to not use popf
2021-02-10 12:36:45 +01:00
enlighten_pvh.c
treewide: Convert macro and uses of __section(foo) to __section("foo")
2020-10-25 14:51:49 -07:00
enlighten.c
treewide: Convert macro and uses of __section(foo) to __section("foo")
2020-10-25 14:51:49 -07:00
grant-table.c
x86/xen: open code alloc_vm_area in arch_gnttab_valloc
2020-10-18 09:27:10 -07:00
irq.c
x86/pv: Rework arch_local_irq_restore() to not use popf
2021-02-10 12:36:45 +01:00
Kconfig
xen: Kconfig: remove X86_64 depends from XEN_512GB
2020-12-19 07:27:37 +01:00
Makefile
xen: branch for v5.9-rc1b
2020-08-14 13:34:37 -07:00
mmu_hvm.c
x86/paravirt: Use a single ops structure
2018-09-03 16:50:35 +02:00
mmu_pv.c
xen: branch for v5.10-rc1
2020-10-14 10:34:45 -07:00
mmu.c
x86/xen: Add SPDX identifier in arch/x86/xen files
2018-09-03 16:50:33 +02:00
mmu.h
mm: update ptep_modify_prot_start/commit to take vm_area_struct as arg
2019-03-05 21:07:18 -08:00
multicalls.c
treewide: Switch printk users from %pf and %pF to %ps and %pS, respectively
2019-04-09 14:19:06 +02:00
multicalls.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
p2m.c
x86/xen: Convert to DEFINE_SHOW_ATTRIBUTE
2020-12-16 07:53:53 +01:00
pci-swiotlb-xen.c
dma-mapping: split <linux/dma-mapping.h>
2020-10-06 07:07:03 +02:00
platform-pci-unplug.c
xen/pvh: don't try to unplug emulated devices
2018-10-26 09:16:57 +02:00
pmu.c
Merge branch 'x86-cpu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2018-10-23 16:16:40 +01:00
pmu.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
setup.c
x86/xen: remove 32-bit Xen PV guest support
2020-08-11 08:26:48 +02:00
smp_hvm.c
x86/xen: fix 'nopvspin' build error
2021-01-18 07:22:20 +01:00
smp_pv.c
xen: branch for v5.9-rc1b
2020-08-14 13:34:37 -07:00
smp.c
xen/events: only register debug interrupt for 2-level events
2020-10-23 05:41:25 -05:00
smp.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
spinlock.c
x86/xen: don't unbind uninitialized lock_kicker_irq
2020-11-09 07:43:45 -06:00
suspend_hvm.c
xen: Move xen_setup_callback_vector() definition to include/xen/hvm.h
2020-06-11 15:15:19 +02:00
suspend_pv.c
locking/seqlock, headers: Untangle the spaghetti monster
2020-08-06 16:13:13 +02:00
suspend.c
x86/xen: Zero MSR_IA32_SPEC_CTRL before suspend
2018-02-28 16:03:19 +01:00
time.c
x86/xen/time: Set the X86_FEATURE_TSC_KNOWN_FREQ flag in xen_tsc_khz()
2020-07-25 15:49:41 +02:00
trace.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
vga.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
xen-asm.S
x86/pv: Rework arch_local_irq_restore() to not use popf
2021-02-10 12:36:45 +01:00
xen-head.S
x86/xen: remove 32-bit Xen PV guest support
2020-08-11 08:26:48 +02:00
xen-ops.h
x86/pv: Rework arch_local_irq_restore() to not use popf
2021-02-10 12:36:45 +01:00