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| author |   Gavin Shan <gwshan@linux.vnet.ibm.com> | 2014-09-30 12:39:01 +1000 |
|---|---|---|
| committer |   Michael Ellerman <mpe@ellerman.id.au> | 2014-09-30 17:15:14 +1000 |
| commit | 4eeeff0ebcdeabf3f76c4eece0593e98c6619be8 (patch) | |
| tree | cf0760e5efe03913afa52375b037f50734907124 /arch/powerpc/include/asm | |
| parent | powerpc/eeh: Fix improper condition in eeh_pci_enable() (diff) | |
| download | linux-dev-4eeeff0ebcdeabf3f76c4eece0593e98c6619be8.tar.xz linux-dev-4eeeff0ebcdeabf3f76c4eece0593e98c6619be8.zip | |
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>
Diffstat (limited to 'arch/powerpc/include/asm')
| -rw-r--r-- | arch/powerpc/include/asm/eeh.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/eeh.h b/arch/powerpc/include/asm/eeh.h index 4fa15796537a..b793fdfb37f3 100644 --- a/arch/powerpc/include/asm/eeh.h +++ b/arch/powerpc/include/asm/eeh.h @@ -286,6 +286,7 @@ void eeh_add_device_late(struct pci_dev *); void eeh_add_device_tree_late(struct pci_bus *); void eeh_add_sysfs_files(struct pci_bus *); void eeh_remove_device(struct pci_dev *); +int eeh_unfreeze_pe(struct eeh_pe *pe, bool sw_state); int eeh_dev_open(struct pci_dev *pdev); void eeh_dev_release(struct pci_dev *pdev); struct eeh_pe *eeh_iommu_group_to_pe(struct iommu_group *group); |