linux/arch/x86/xen
Jan Beulich 2cc42bac1c x86-64/Xen: eliminate W+X mappings
A few thousand such pages are usually left around due to the re-use of
L1 tables having been provided by the hypervisor (Dom0) or tool stack
(DomU). Set NX in the direct map variant, which needs to be done in L2
due to the dual use of the re-used L1s.

For x86_configure_nx() to actually do what it is supposed to do, call
get_cpu_cap() first. This was broken by commit 4763ed4d45 ("x86, mm:
Clean up and simplify NX enablement") when switching away from the
direct EFER read.

Signed-off-by: Jan Beulich <jbeulich@suse.com>
Reviewed-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
2017-12-19 11:33:25 -05:00
..
apic.c x86/Xen: don't report ancient LAPIC version 2017-12-12 09:39:17 -05:00
debugfs.c x86/xen: Audit and remove any unnecessary uses of module.h 2016-07-14 15:06:59 +02:00
debugfs.h
efi.c x86/xen/efi: Initialize only the EFI struct members used by Xen 2017-06-23 11:11:03 +02:00
enlighten_hvm.c xen: fix hvm guest with kaslr enabled 2017-08-11 15:50:26 +02:00
enlighten_pv.c x86-64/Xen: eliminate W+X mappings 2017-12-19 11:33:25 -05:00
enlighten_pvh.c xen/pvh: Do not fill kernel's e820 map in init_pvh_bootparams() 2017-05-02 11:17:39 +02:00
enlighten.c xen/vcpu: Use a unified name about cpu hotplug state for pv and pvhvm 2017-10-10 08:40:02 -04:00
grant-table.c xen: re-introduce support for grant v2 interface 2017-11-06 15:50:17 -05:00
irq.c x86/xen: Get rid of paravirt op adjust_exception_frame 2017-08-31 21:35:10 +02:00
Kconfig x86: Enable 5-level paging support via CONFIG_X86_5LEVEL=y 2017-07-21 10:05:19 +02:00
Makefile objtool, x86: Add several functions and files to the objtool whitelist 2017-06-30 10:19:19 +02:00
mmu_hvm.c x86/xen: split off mmu_hvm.c 2017-05-02 11:05:10 +02:00
mmu_pv.c x86-64/Xen: eliminate W+X mappings 2017-12-19 11:33:25 -05:00
mmu.c xen: support priv-mapping in an HVM tools domain 2017-11-03 16:53:53 -04:00
mmu.h x86/xen: Change __xen_pgd_walk() and xen_cleanmfnmap() to support p4d 2017-03-27 08:56:49 +02:00
multicalls.c
multicalls.h
p2m.c xen: remove tests for pvh mode in pure pv paths 2017-08-31 09:45:55 -04:00
pci-swiotlb-xen.c xen-swiotlb: consolidate xen_swiotlb_dma_ops 2017-06-20 11:12:59 +02:00
platform-pci-unplug.c xen/pvh: PVH guests always have PV devices 2017-02-07 08:07:01 -05:00
pmu.c xen: Make VPMU init message look less scary 2016-08-24 18:45:38 +01:00
pmu.h x86/xen: put setup.c, pmu.c and apic.c under CONFIG_XEN_PV 2017-05-02 11:09:28 +02:00
setup.c xen: remove tests for pvh mode in pure pv paths 2017-08-31 09:45:55 -04:00
smp_hvm.c xen/vcpu: Handle xen_vcpu_setup() failure at boot 2017-06-13 16:10:58 +02:00
smp_pv.c xen/x86: fix cpu hotplug 2017-07-23 08:13:11 +02:00
smp.c xen/vcpu: Handle xen_vcpu_setup() failure at boot 2017-06-13 16:10:58 +02:00
smp.h xen/vcpu: Handle xen_vcpu_setup() failure at boot 2017-06-13 16:10:58 +02:00
spinlock.c locking/spinlocks/x86, paravirt: Remove paravirt_ticketlocks_enabled 2017-01-14 09:33:46 +01:00
suspend_hvm.c xen/pvh*: Support > 32 VCPUs at domain restore 2017-06-13 16:05:17 +02:00
suspend_pv.c x86/xen: split suspend.c for PV and PVHVM guests 2017-05-02 11:09:17 +02:00
suspend.c x86/xen/time: setup vcpu 0 time info page 2017-11-08 16:33:14 -05:00
time.c x86/xen/time: setup vcpu 0 time info page 2017-11-08 16:33:14 -05:00
trace.c
vdso.h
vga.c
xen-asm_32.S x86/paravirt/xen: Remove xen_patch() 2017-08-24 09:57:24 +02:00
xen-asm_64.S x86/xen: Get rid of paravirt op adjust_exception_frame 2017-08-31 21:35:10 +02:00
xen-asm.S x86/paravirt/xen: Remove xen_patch() 2017-08-24 09:57:24 +02:00
xen-head.S x86/xen: Redefine XEN_ELFNOTE_INIT_P2M using PUD_SIZE * PTRS_PER_PUD 2017-07-21 10:05:18 +02:00
xen-ops.h x86/xen/time: setup vcpu 0 time info page 2017-11-08 16:33:14 -05:00
xen-pvh.S x86/boot/64: Rename init_level4_pgt and early_level4_pgt 2017-06-13 08:56:55 +02:00