linux/arch/x86
Peter Xu 75182022a0 mm/x86: support large pfn mappings
Helpers to install and detect special pmd/pud entries.  In short, bit 9 on
x86 is not used for pmd/pud, so we can directly define them the same as
the pte level.  One note is that it's also used in _PAGE_BIT_CPA_TEST but
that is only used in the debug test, and shouldn't conflict in this case.

One note is that pxx_set|clear_flags() for pmd/pud will need to be moved
upper so that they can be referenced by the new special bit helpers. 
There's no change in the code that was moved.

Link: https://lkml.kernel.org/r/20240826204353.2228736-18-peterx@redhat.com
Signed-off-by: Peter Xu <peterx@redhat.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Alexander Gordeev <agordeev@linux.ibm.com>
Cc: Alex Williamson <alex.williamson@redhat.com>
Cc: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Christian Borntraeger <borntraeger@linux.ibm.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: Gavin Shan <gshan@redhat.com>
Cc: Gerald Schaefer <gerald.schaefer@linux.ibm.com>
Cc: Heiko Carstens <hca@linux.ibm.com>
Cc: Jason Gunthorpe <jgg@nvidia.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Niklas Schnelle <schnelle@linux.ibm.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Ryan Roberts <ryan.roberts@arm.com>
Cc: Sean Christopherson <seanjc@google.com>
Cc: Sven Schnelle <svens@linux.ibm.com>
Cc: Vasily Gorbik <gor@linux.ibm.com>
Cc: Will Deacon <will@kernel.org>
Cc: Zi Yan <ziy@nvidia.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2024-09-17 01:06:59 -07:00
..
boot mm: rework accept memory helpers 2024-09-01 20:26:07 -07:00
coco x86/sev: Fix __reserved field in sev_config 2024-07-30 10:07:26 +02:00
configs hardening: Enable KCFI and some other options 2024-05-01 12:38:14 -07:00
crypto crypto: x86/aes-gcm - rewrite the AES-NI optimized AES-GCM 2024-06-07 19:47:58 +08:00
entry uretprobe: change syscall number, again 2024-08-02 15:18:49 +02:00
events perf/x86: Fix smp_processor_id()-in-preemptible warnings 2024-07-31 12:57:39 +02:00
hyperv x86/mm: Make x86_platform.guest.enc_status_change_*() return an error 2024-06-17 17:45:53 +02:00
ia32
include mm/x86: support large pfn mappings 2024-09-17 01:06:59 -07:00
kernel mm: make arch_get_unmapped_area() take vm_flags by default 2024-09-09 16:39:13 -07:00
kvm KVM: x86: Make x2APIC ID 100% readonly 2024-08-13 12:01:46 -04:00
lib x86/uaccess: Zero the 8-byte get_range case on failure on 32-bit 2024-08-01 21:19:10 +02:00
math-emu x86/math-emu: Fix function cast warnings 2024-04-08 16:06:22 +02:00
mm mm/x86/pat: use the new follow_pfnmap API 2024-09-17 01:06:59 -07:00
net bpf: remove unused parameter in bpf_jit_binary_pack_finalize 2024-06-20 19:50:26 -07:00
pci - Flip the logic to add feature names to /proc/cpuinfo to having to 2024-07-15 20:25:16 -07:00
platform xen: branch for v6.11-rc1a 2024-07-27 09:58:24 -07:00
power - Kuan-Wei Chiu has developed the well-named series "lib min_heap: Min 2024-03-14 18:03:09 -07:00
purgatory Kbuild updates for v6.10 2024-05-18 12:39:20 -07:00
ras
realmode Makefile: remove redundant tool coverage variables 2024-05-14 23:35:48 +09:00
tools Changes: 2024-05-19 11:32:42 -07:00
um mm: remove legacy install_special_mapping() code 2024-09-01 20:26:13 -07:00
video arch: Fix name collision with ACPI's video.o 2024-05-20 21:17:06 +00:00
virt - Add support for running the kernel in a SEV-SNP guest, over a Secure 2024-07-16 11:12:25 -07:00
xen mm: turn USE_SPLIT_PTE_PTLOCKS / USE_SPLIT_PTE_PTLOCKS into Kconfig options 2024-09-01 20:25:51 -07:00
.gitignore
Kbuild x86/build: Use obj-y to descend into arch/x86/virt/ 2024-03-30 10:41:49 +01:00
Kconfig mm/x86: support large pfn mappings 2024-09-17 01:06:59 -07:00
Kconfig.assembler x86/kconfig: Add as-instr64 macro to properly evaluate AS_WRUSS 2024-06-20 19:48:18 +02:00
Kconfig.cpu x86/Kconfig: Transmeta Crusoe is CPU family 5, not 6 2024-02-09 16:28:19 +01:00
Kconfig.debug x86/kconfig: Select ARCH_WANT_FRAME_POINTERS again when UNWINDER_FRAME_POINTER=y 2024-05-20 11:37:23 +02:00
Makefile - A series ("kbuild: enable more warnings by default") from Arnd 2024-05-22 18:59:29 -07:00
Makefile_32.cpu
Makefile.postlink kbuild: remove ARCH_POSTLINK from module builds 2023-10-28 21:10:08 +09:00
Makefile.um arch: um: rust: Use the generated target.json again 2024-07-03 12:22:11 +02:00