linux_dsm_epyc7002/arch/x86/include/asm/e820
KarimAllah Ahmed 0c55671f84 kvm, x86: Properly check whether a pfn is an MMIO or not
pfn_valid check is not sufficient because it only checks if a page has a struct
page or not, if "mem=" was passed to the kernel some valid pages won't have a
struct page. This means that if guests were assigned valid memory that lies
after the mem= boundary it will be passed uncached to the guest no matter what
the guest caching attributes are for this memory.

Introduce a new function e820__mapped_raw_any which is equivalent to
e820__mapped_any but uses the original e820 unmodified and use it to
identify real *RAM*.

Signed-off-by: KarimAllah Ahmed <karahmed@amazon.de>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2019-04-30 21:49:46 +02:00
..
api.h kvm, x86: Properly check whether a pfn is an MMIO or not 2019-04-30 21:49:46 +02:00
types.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00