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linux/arch/x86/xen
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Thomas Gleixner 1f19e2d50b x86/cpu: Get rid of redundant switch_to_new_gdt() invocations 
The only place where switch_to_new_gdt() is required is early boot to
switch from the early GDT to the direct GDT. Any other invocation is
completely redundant because it does not change anything.

Secondary CPUs come out of the ASM code with GDT and GSBASE correctly set
up. The same is true for XEN_PV.

Remove all the voodoo invocations which are left overs from the ancient
past, rename the function to switch_gdt_and_percpu_base() and mark it init.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lore.kernel.org/r/20220915111143.198076128@infradead.org
2022-10-17 16:40:56 +02:00
..
apic.c arch:x86:xen: Remove unnecessary assignment in xen_apic_read() 2022-03-15 20:35:35 -05:00
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.c x86/xen: Add support for HVMOP_set_evtchn_upcall_vector 2022-08-12 11:28:21 +02:00
enlighten_hvm.c xen/virtio: enable grant based virtio on x86 2022-10-10 14:31:26 +02:00
enlighten_pv.c x86/cpu: Get rid of redundant switch_to_new_gdt() invocations 2022-10-17 16:40:56 +02:00
enlighten_pvh.c xen/x86: adjust data placement 2021-10-05 08:36:19 +02:00
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/xen: switch initial pvops IRQ functions to dummy ones 2021-11-02 08:03:43 -05:00
Kconfig xen/pv: support selecting safe/unsafe msr accesses 2022-10-11 10:51:05 +02:00
Makefile x86: remove the IOMMU table infrastructure 2022-04-18 07:21:10 +02:00
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
mmu_hvm.c proc/vmcore: convert oldmem_pfn_is_ram callback to more generic vmcore callbacks 2021-11-09 10:02:48 -08:00
mmu_pv.c swiotlb-xen: fix DMA_ATTR_NO_KERNEL_MAPPING on arm 2022-05-11 19:48:32 +02:00
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 memblock: use memblock_free for freeing virtual pointers 2021-11-06 13:30:41 -07:00
platform-pci-unplug.c x86: xen: platform-pci-unplug: use pr_err() and pr_warn() instead of raw printk() 2021-08-30 12:09:54 +02:00
pmu.c xen/pv: fix vendor checks for pmu emulation 2022-10-11 10:50:55 +02:00
pmu.h xen: fix is_xen_pmu() 2022-03-25 14:22:53 -05:00
setup.c x86/xen: Rename SYS* entry points 2022-06-27 10:33:59 +02:00
smp.c x86/xen: remove xen_have_vcpu_info_placement flag 2021-11-02 07:45:44 -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
smp_hvm.c xen: delay xen_hvm_init_time_ops() if kdump is boot on vcpu>=32 2022-03-10 09:27:55 -06:00
smp_pv.c smp: add set_nr_cpu_ids() 2022-09-19 17:51:53 -07:00
spinlock.c x86/xen: don't unbind uninitialized lock_kicker_irq 2020-11-09 07:43:45 -06:00
suspend.c x86/xen: Zero MSR_IA32_SPEC_CTRL before suspend 2018-02-28 16:03:19 +01:00
suspend_hvm.c x86/xen: Add support for HVMOP_set_evtchn_upcall_vector 2022-08-12 11:28:21 +02:00
suspend_pv.c locking/seqlock, headers: Untangle the spaghetti monster 2020-08-06 16:13:13 +02:00
time.c xen: delay xen_hvm_init_time_ops() if kdump is boot on vcpu>=32 2022-03-10 09:27:55 -06:00
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 xen/x86: obtain full video frame buffer address for Dom0 also under EFI 2022-02-10 11:07:23 +01:00
xen-asm.S objtool: Add entry UNRET validation 2022-06-27 10:34:00 +02:00
xen-head.S Just when you thought that all the speculation bugs were addressed and 2022-07-11 18:15:25 -07:00
xen-ops.h x86/xen: Rename SYS* entry points 2022-06-27 10:33:59 +02:00