linux/arch
Kalesh Singh 6928bcc84b KVM: arm64: Allocate shared pKVM hyp stacktrace buffers
In protected nVHE mode the host cannot directly access
hypervisor memory, so we will dump the hypervisor stacktrace
to a shared buffer with the host.

The minimum size for the buffer required, assuming the min frame
size of [x29, x30] (2 * sizeof(long)), is half the combined size of
the hypervisor and overflow stacks plus an additional entry to
delimit the end of the stacktrace.

The stacktrace buffers are used later in the series to dump the
nVHE hypervisor stacktrace when using protected-mode.

Signed-off-by: Kalesh Singh <kaleshsingh@google.com>
Reviewed-by: Fuad Tabba <tabba@google.com>
Tested-by: Fuad Tabba <tabba@google.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20220726073750.3219117-14-kaleshsingh@google.com
2022-07-26 10:50:12 +01:00
..
alpha Cleanups (and one fix) around struct mount handling. 2022-06-04 19:00:05 -07:00
arc This set of changes updates init and user mode helper tasks to be 2022-06-03 16:03:05 -07:00
arm ARM: dts: at91: ksz9477_evb: fix port/phy validation 2022-06-14 22:11:02 -07:00
arm64 KVM: arm64: Allocate shared pKVM hyp stacktrace buffers 2022-07-26 10:50:12 +01:00
csky This set of changes updates init and user mode helper tasks to be 2022-06-03 16:03:05 -07:00
hexagon fork: Generalize PF_IO_WORKER handling 2022-05-07 09:01:59 -05:00
ia64 Bitmap patches for 5.19-rc1 2022-06-04 14:04:27 -07:00
loongarch LoongArch: vmlinux.lds.S: Add missing ELF_DETAILS 2022-06-17 22:09:05 +08:00
m68k This set of changes updates init and user mode helper tasks to be 2022-06-03 16:03:05 -07:00
microblaze This set of changes updates init and user mode helper tasks to be 2022-06-03 16:03:05 -07:00
mips This set of changes updates init and user mode helper tasks to be 2022-06-03 16:03:05 -07:00
nios2 This set of changes updates init and user mode helper tasks to be 2022-06-03 16:03:05 -07:00
openrisc This set of changes updates init and user mode helper tasks to be 2022-06-03 16:03:05 -07:00
parisc Kbuild updates for v5.19 (2nd) 2022-06-05 09:06:03 -07:00
powerpc powerpc fixes for 5.19 #2 2022-06-09 12:17:43 -07:00
riscv RISC-V Fixes for 5.19-rc3 2022-06-17 13:45:47 -05:00
s390 xen: branch for v5.19-rc2 2022-06-10 09:57:11 -07:00
sh This set of changes updates init and user mode helper tasks to be 2022-06-03 16:03:05 -07:00
sparc This set of changes updates init and user mode helper tasks to be 2022-06-03 16:03:05 -07:00
um um: virt-pci: set device ready in probe() 2022-06-10 20:38:06 -04:00
x86 X86 updates: 2022-06-19 09:58:28 -05:00
xtensa While looking at the ptrace problems with PREEMPT_RT and the problems 2022-06-03 16:13:25 -07:00
.gitignore
Kconfig A set of objtool fixes: 2022-06-05 09:45:27 -07:00