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01bd2ac2f5
linux/arch/x86/xen
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Juergen Gross 01bd2ac2f5 xen: fix dom0 boot on huge systems 
Commit f7c90c2aa4 ("x86/xen: don't write ptes directly in 32-bit
PV guests") introduced a regression for booting dom0 on huge systems
with lots of RAM (in the TB range).

Reason is that on those hosts the p2m list needs to be moved early in
the boot process and this requires temporary page tables to be created.
Said commit modified xen_set_pte_init() to use a hypercall for writing
a PTE, but this requires the page table being in the direct mapped
area, which is not the case for the temporary page tables used in
xen_relocate_p2m().

As the page tables are completely written before being linked to the
actual address space instead of set_pte() a plain write to memory can
be used in xen_relocate_p2m().

Fixes: f7c90c2aa4 ("x86/xen: don't write ptes directly in 32-bit PV guests")
Cc: stable@vger.kernel.org
Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Jan Beulich <jbeulich@suse.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
2019-03-08 18:07:30 +01:00
..
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 License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
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 x86/xen: Add SPDX identifier in arch/x86/xen files 2018-09-03 16:50:33 +02:00
enlighten_hvm.c x86/xen: Add SPDX identifier in arch/x86/xen files 2018-09-03 16:50:33 +02:00
enlighten_pv.c always clear the X2APIC_ENABLE bit for PV guest 2019-01-14 09:00:32 -05:00
enlighten_pvh.c xen/pvh: Move Xen code for getting mem map via hcall out of common file 2018-12-13 13:41:49 -05:00
enlighten.c xen: fixes for 4.20-rc5 2018-12-02 12:15:55 -08:00
grant-table.c x86/xen: Add SPDX identifier in arch/x86/xen files 2018-09-03 16:50:33 +02:00
irq.c x86/paravirt: Use a single ops structure 2018-09-03 16:50:35 +02:00
Kconfig xen/pvh: Split CONFIG_XEN_PVH into CONFIG_PVH and CONFIG_XEN_PVH 2018-12-13 13:41:49 -05:00
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 xen: fix dom0 boot on huge systems 2019-03-08 18:07:30 +01:00
mmu.c x86/xen: Add SPDX identifier in arch/x86/xen files 2018-09-03 16:50:33 +02:00
mmu.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
multicalls.c xen/x86: add diagnostic printout to xen_mc_flush() in case of error 2018-11-29 17:53:16 +01:00
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 xen: fixes for 4.20-rc2 2018-11-10 08:58:48 -06:00
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/xen: dont add memory above max allowed allocation 2019-02-18 06:52:51 +01:00
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/stackprotector: Remove the call to boot_init_stack_canary() from cpu_startup_entry() 2018-10-22 04:07:24 +02:00
smp.c x86/xen: Calculate __max_logical_packages on PV domains 2018-02-17 09:40:45 +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 x86/xen: cleanup includes in arch/x86/xen/spinlock.c 2018-11-22 16:47:50 +01:00
suspend_hvm.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
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 xen: Fix x86 sched_clock() interface for xen 2019-01-16 13:06:05 -05:00
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 License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
xen-asm_64.S kprobes/x86/xen: blacklist non-attachable xen interrupt functions 2018-12-17 10:27:59 -05:00
xen-asm.S License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
xen-head.S xen/pvh: Indicate XENFEAT_linux_rsdp_unrestricted to Xen 2018-04-10 09:22:22 -04:00
xen-ops.h x86/xen: remove unused function xen_auto_xlated_memory_setup() 2018-08-20 14:46:18 -04:00