| commit | cf7df13d3c7c7f8a475c09ef49a5b72f7cfe3f4b | |
| author | Marc Zyngier <marc.zyngier@arm.com> | |
| Thu, 30 Jun 2016 17:40:35 +0000 (30 18:40 +0100) | ||
| committer | Christoffer Dall <christoffer.dall@linaro.org> | |
| Sun, 3 Jul 2016 21:41:27 +0000 (3 23:41 +0200) | ||
| tree | 5afc0cf776ae43fc1c614b20f6f1fea3e33b55ce | treesnapshot (tar.gz zip) |
| parent | 82a81bff90c5fd11fefae35773f7396617a3cfff | commitdiff |
arm64: KVM: Always reference __hyp_panic_string via its kernel VA
__hyp_panic_string is passed via the HYP panic code to the panic
function, and is being "upgraded" to a kernel address, as it is
referenced by the HYP code (in a PC-relative way).
This is a bit silly, and we'd be better off obtaining the kernel
address and not mess with it at all. This patch implements this
with a tiny bit of asm glue, by forcing the string pointer to be
read from the literal pool.
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
__hyp_panic_string is passed via the HYP panic code to the panic
function, and is being "upgraded" to a kernel address, as it is
referenced by the HYP code (in a PC-relative way).
This is a bit silly, and we'd be better off obtaining the kernel
address and not mess with it at all. This patch implements this
with a tiny bit of asm glue, by forcing the string pointer to be
read from the literal pool.
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
| arch/arm64/kvm/hyp/switch.c | diffblobblamehistory |