diff options
| author | Otavio Pontes <otavio.pontes@intel.com> | 2018-03-07 10:39:14 +0300 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2018-03-08 14:30:38 +0300 |
| commit | 6fa4a94e150be25d02547d51f03b4bc34aaec32f (patch) | |
| tree | e9e750709d73b4d2ade5e9bc4fb53e4cfcc4a8c1 /arch/x86/kernel/jailhouse.c | |
| parent | 690f4304104f37e473bd5e43fc5247f5cd35b225 (diff) | |
| download | linux-6fa4a94e150be25d02547d51f03b4bc34aaec32f.tar.xz | |
x86/jailhouse: Enable PCI mmconfig access in inmates
Use the PCI mmconfig base address exported by jailhouse in boot parameters
in order to access the memory mapped PCI configuration space.
[Jan: rebased, fixed !CONFIG_PCI_MMCONFIG, used pcibios_last_bus]
Signed-off-by: Otavio Pontes <otavio.pontes@intel.com>
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Cc: jailhouse-dev@googlegroups.com
Cc: linux-pci@vger.kernel.org
Cc: virtualization@lists.linux-foundation.org
Cc: Bjorn Helgaas <bhelgaas@google.com>
Link: https://lkml.kernel.org/r/2ee9e4401fa22377b3965893a558120f169be82b.1520408357.git.jan.kiszka@siemens.com
Diffstat (limited to 'arch/x86/kernel/jailhouse.c')
| -rw-r--r-- | arch/x86/kernel/jailhouse.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/arch/x86/kernel/jailhouse.c b/arch/x86/kernel/jailhouse.c index b68fd895235a..fa183a131edc 100644 --- a/arch/x86/kernel/jailhouse.c +++ b/arch/x86/kernel/jailhouse.c @@ -124,6 +124,14 @@ static int __init jailhouse_pci_arch_init(void) if (pcibios_last_bus < 0) pcibios_last_bus = 0xff; +#ifdef CONFIG_PCI_MMCONFIG + if (setup_data.pci_mmconfig_base) { + pci_mmconfig_add(0, 0, pcibios_last_bus, + setup_data.pci_mmconfig_base); + pci_mmcfg_arch_init(); + } +#endif + return 0; } |