| commit | 4eeeff0ebcdeabf3f76c4eece0593e98c6619be8 | |
| author | Gavin Shan <gwshan@linux.vnet.ibm.com> | |
| Tue, 30 Sep 2014 02:39:01 +0000 (30 12:39 +1000) | ||
| committer | Michael Ellerman <mpe@ellerman.id.au> | |
| Tue, 30 Sep 2014 07:15:14 +0000 (30 17:15 +1000) | ||
| tree | cf0760e5efe03913afa52375b037f50734907124 | treesnapshot (tar.gz zip) |
| parent | 4d4f577e4b5ee1299096438bbcf743bbe14f33ab | commitdiff |
powerpc/eeh: Unfreeze PE on enabling EEH functionality
When passing through PE to guest, that's possibly in frozen
state. The driver for the pass-through devices on guest side
can't be loaded successfully as reported. We already had one
gate in eeh_dev_open() to clear PE frozen state accordingly,
but that's not enough because the function is only called at
QEMU startup for once.
The patch adds another gate in eeh_pe_set_option() so that the
PE frozen state can be cleared at QEMU restart time.
Signed-off-by: Gavin Shan <gwshan@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
When passing through PE to guest, that's possibly in frozen
state. The driver for the pass-through devices on guest side
can't be loaded successfully as reported. We already had one
gate in eeh_dev_open() to clear PE frozen state accordingly,
but that's not enough because the function is only called at
QEMU startup for once.
The patch adds another gate in eeh_pe_set_option() so that the
PE frozen state can be cleared at QEMU restart time.
Signed-off-by: Gavin Shan <gwshan@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
| arch/powerpc/include/asm/eeh.h | diffblobblamehistory | |
| arch/powerpc/kernel/eeh.c | diffblobblamehistory |