tree 54b9b039f1c05bef23dfe9cf5a052359e5f16b56
parent b8c6a5d9d0ab426c1626cd6c228b09b9529dba31
author Jan Kiszka <jan.kiszka@siemens.com> 1352017015 +0100
committer Blue Swirl <blauwirbel@gmail.com> 1352550317 +0000

kvmvapic: Fix TB invalidation after instruction patching

Since 0b57e287, cpu_memory_rw_debug already triggers a TB invalidation.
As it doesn't (and cannot) set is_cpu_write_access=1 but "consumes" the
currently executed TB, the tb_invalidate_phys_page_range call from
patch_instruction didn't work anymore.

Fix this by open-coding the required bits to restore the CPU state from
the current TB position before patching and resume execution on the
patched instruction afterward.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Tested-by: Hervé Poussineau <hpoussin@reactos.org>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>