AuxXxilium/linux_dsm_epyc7002
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ffae641f57
linux_dsm_epyc7002/arch/x86/xen
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Andy Lutomirski ffae641f57 x86/entry/64/compat: Fix Xen PV SYSENTER frame setup 
The SYSENTER frame setup was nonsense.  It worked by accident because the
normal code into which the Xen asm jumped (entry_SYSENTER_32/compat) threw
away SP without touching the stack.  entry_SYSENTER_compat was recently
modified such that it relied on having a valid stack pointer, so now the
Xen asm needs to invoke it with a valid stack.

Fix it up like SYSCALL: use the Xen-provided frame and skip the bare
metal prologue.

Fixes: 1c3e5d3f60 ("x86/entry: Make entry_64_compat.S objtool clean")
Signed-off-by: Andy Lutomirski <luto@kernel.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Link: https://lkml.kernel.org/r/947880c41ade688ff4836f665d0c9fcaa9bd1201.1593191971.git.luto@kernel.org
2020-07-01 10:00:26 +02:00
..
apic.c Merge branch 'WIP.x86/asm' into x86/urgent, because the topic is ready 2018-04-12 09:42:34 +02:00
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/libstub: Add definitions for console input and events 2020-05-20 19:09:20 +02:00
enlighten_hvm.c x86/entry: Convert XEN hypercall vector to IDTENTRY_SYSVEC 2020-06-11 15:15:15 +02:00
enlighten_pv.c maccess: rename probe_kernel_{read,write} to copy_{from,to}_kernel_nofault 2020-06-17 10:57:41 -07:00
enlighten_pvh.c xen/pvh: correctly setup the PV EFI interface for dom0 2019-04-25 10:36:25 -04:00
enlighten.c x86/xen: Return from panic notifier 2019-10-07 17:53:30 -04:00
grant-table.c mm: don't include asm/pgtable.h if linux/mm.h is already included 2020-06-09 09:39:13 -07:00
irq.c x86/paravirt: Use a single ops structure 2018-09-03 16:50:35 +02:00
Kconfig x86/Kconfig: Fix Kconfig indentation 2019-12-10 18:43:21 +01:00
Makefile xen/pvh: Create a new file for Xen specific PVH code 2018-12-13 13:41:49 -05:00
mmu_hvm.c x86/paravirt: Use a single ops structure 2018-09-03 16:50:35 +02:00
mmu_pv.c mm: reorder includes after introduction of linux/pgtable.h 2020-06-09 09:39:13 -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: no need to check return value of debugfs_create functions 2019-06-03 15:49:07 +02:00
pci-swiotlb-xen.c x86/xen: Add SPDX identifier in arch/x86/xen files 2018-09-03 16:50:33 +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/entry: Switch XEN/PV hypercall entry to IDTENTRY 2020-06-11 15:15:08 +02:00
smp_hvm.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
smp_pv.c x86/entry: Switch XEN/PV hypercall entry to IDTENTRY 2020-06-11 15:15:08 +02:00
smp.c x86/smp: Replace cpu_up/down() with add/remove_cpu() 2020-03-25 12:59:35 +01:00
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 Revert "x86/paravirt: Set up the virt_spin_lock_key after static keys get initialized" 2019-07-17 08:09:57 +02:00
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 x86/xen/time: Initialize pv xen time in init_hypervisor_platform() 2018-07-20 00:02:39 +02:00
suspend.c x86/xen: Zero MSR_IA32_SPEC_CTRL before suspend 2018-02-28 16:03:19 +01:00
time.c x86/vdso: Use generic VDSO clock mode storage 2020-02-17 14:40:23 +01:00
trace.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
vdso.h x86/xen: Add SPDX identifier in arch/x86/xen files 2018-09-03 16:50:33 +02:00
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_32.S x86/entry: Switch XEN/PV hypercall entry to IDTENTRY 2020-06-11 15:15:08 +02:00
xen-asm_64.S x86/entry/64/compat: Fix Xen PV SYSENTER frame setup 2020-07-01 10:00:26 +02:00
xen-asm.S x86/asm: Change all ENTRY+ENDPROC to SYM_FUNC_* 2019-10-18 11:58:33 +02:00
xen-head.S x86/xen: fix booting 32-bit pv guest 2020-04-09 16:53:48 +02:00
xen-ops.h xen: Move xen_setup_callback_vector() definition to include/xen/hvm.h 2020-06-11 15:15:19 +02:00