Kirill A. Shutemov c3abbf1376 x86/tdx: Account shared memory ... The kernel will convert all shared memory back to private during kexec. The direct mapping page tables will provide information on which memory is shared. It is extremely important to convert all shared memory. If a page is missed, it will cause the second kernel to crash when it accesses it. Keep track of the number of shared pages. This will allow for cross-checking against the shared information in the direct mapping and reporting if the shared bit is lost. Memory conversion is slow and does not happen often. Global atomic is not going to be a bottleneck. Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de> Reviewed-by: Kai Huang <kai.huang@intel.com> Tested-by: Tao Liu <ltao@redhat.com> Link: https://lore.kernel.org/r/20240614095904.1345461-10-kirill.shutemov@linux.intel.com		2024-06-17 17:45:59 +02:00
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tdx	x86/tdx: Account shared memory	2024-06-17 17:45:59 +02:00
core.c	cpu/hotplug, x86/acpi: Disable CPU offlining for ACPI MADT wakeup	2024-06-17 17:45:34 +02:00
Makefile	x86/tdx: Detect running as a TDX guest in early boot	2022-04-07 08:27:50 -07:00