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linux/arch/x86/xen
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Juergen Gross 2f94fb4a42 x86/xen: Fix secondary processors' FPU initialization 
commit fe3e0a13e5 upstream.

Moving the call of fpu__init_cpu() from cpu_init() to start_secondary()
broke Xen PV guests, as those don't call start_secondary() for APs.

Call fpu__init_cpu() in Xen's cpu_bringup(), which is the Xen PV
replacement of start_secondary().

Fixes: b81fac906a ("x86/fpu: Move FPU initialization into arch_cpu_finalize_init()")
Signed-off-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/r/20230703130032.22916-1-jgross@suse.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
History 2023-08-08 20:04:51 +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/xen: Set MTRR state when running as Xen PV initial domain 2023-07-19 16:35:18 +02:00
enlighten_pvh.c x86/PVH: avoid 32-bit build warning when obtaining VGA console info 2023-03-22 16:59:46 +01:00
grant-table.c x86/xen: open code alloc_vm_area in arch_gnttab_valloc 2020-10-18 09:27:10 -07:00
irq.c cpuidle, xenpv: Make more PARAVIRT_XXL noinstr clean 2023-01-13 11:48:16 +01:00
Kconfig xen/pv: support selecting safe/unsafe msr accesses 2022-10-11 10:51:05 +02:00
Makefile x86/PVH: obtain VGA console info in Dom0 2023-03-14 15:20:51 +01:00
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 x86/paravirt: Merge activate_mm() and dup_mmap() callbacks 2023-03-06 09:41:37 +01:00
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: Remove the unused function p2m_index() 2023-01-09 07:54:28 +01:00
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 x86/xen: silence smatch warning in pmu_msr_chk_emulated() 2022-11-03 10:23:26 +01:00
pmu.h xen: fix is_xen_pmu() 2022-03-25 14:22:53 -05:00
setup.c x86/Xen: drop leftover VM-assist uses 2023-02-18 09:59:01 +01:00
smp.c x86/xen: Fix memory leak in xen_smp_intr_init{_pv}() 2022-12-05 12:59:50 +01:00
smp.h x86/xen: mark xen_pv_play_dead() as __noreturn 2023-02-13 06:53:19 +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 x86/xen: Fix secondary processors' FPU initialization 2023-08-08 20:04:51 +02:00
spinlock.c x86/xen: Fix memory leak in xen_init_lock_cpu() 2022-12-05 12:59:50 +01:00
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: branch for v6.3-rc3 2023-03-17 10:45:49 -07:00
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 x86/PVH: obtain VGA console info in Dom0 2023-03-14 15:20:51 +01:00
xen-asm.S x86,objtool: Split UNWIND_HINT_EMPTY in two 2023-03-23 23:18:58 +01:00
xen-head.S Objtool changes for v6.4: 2023-04-28 14:02:54 -07:00
xen-ops.h x86/PVH: obtain VGA console info in Dom0 2023-03-14 15:20:51 +01:00