Yi Wang 5375b84e3b vmm: interrupt: fix msi mask irq causing kernel panic on AMD ... When mask a msi irq, we set the entry.masked to be true, so kvm hypervisor will not pass the gsi to kernel through KVM_SET_GSI_ROUTING ioctl which update kvm->irq_routing. This will trigger kernel panic on AMD platform when the gsi is the largest one in kernel kvm->irqfds.items: crash> bt PID: 22218 TASK: ffff951a6ad74980 CPU: 73 COMMAND: "vcpu8" #0 [ffffb1ba6707fa40] machine_kexec at ffffffff8565b397 #1 [ffffb1ba6707fa90] __crash_kexec at ffffffff85788a6d #2 [ffffb1ba6707fb58] crash_kexec at ffffffff8578995d #3 [ffffb1ba6707fb70] oops_end at ffffffff85623c0d #4 [ffffb1ba6707fb90] no_context at ffffffff856692c9 #5 [ffffb1ba6707fbf8] exc_page_fault at ffffffff85f95b51 #6 [ffffb1ba6707fc50] asm_exc_page_fault at ffffffff86000ace [exception RIP: svm_update_pi_irte+227] RIP: ffffffffc0761b53 RSP: ffffb1ba6707fd08 RFLAGS: 00010086 RAX: ffffb1ba6707fd78 RBX: ffffb1ba66d91000 RCX: 0000000000000001 RDX: 00003c803f63f1c0 RSI: 000000000000019a RDI: ffffb1ba66db2ab8 RBP: 000000000000019a R8: 0000000000000040 R9: ffff94ca41b82200 R10: ffffffffffffffcf R11: 0000000000000001 R12: 0000000000000001 R13: 0000000000000001 R14: ffffffffffffffcf R15: 000000000000005f ORIG_RAX: ffffffffffffffff CS: 0010 SS: 0018 #7 [ffffb1ba6707fdb8] kvm_irq_routing_update at ffffffffc09f19a1 [kvm] #8 [ffffb1ba6707fde0] kvm_set_irq_routing at ffffffffc09f2133 [kvm] #9 [ffffb1ba6707fe18] kvm_vm_ioctl at ffffffffc09ef544 [kvm] RIP: 00007f143c36488b RSP: 00007f143a4e04b8 RFLAGS: 00000246 RAX: ffffffffffffffda RBX: 00007f05780041d0 RCX: 00007f143c36488b RDX: 00007f05780041d0 RSI: 000000004008ae6a RDI: 0000000000000020 RBP: 00000000000004e8 R8: 0000000000000008 R9: 00007f05780041e0 R10: 00007f0578004560 R11: 0000000000000246 R12: 00000000000004e0 R13: 000000000000001a R14: 00007f1424001c60 R15: 00007f0578003bc0 ORIG_RAX: 0000000000000010 CS: 0033 SS: 002b To solve this problem, move route.disable() before set_gsi_routes() to remove the gsi from irqfds.items first. This problem only exists on AMD platform, 'cause on Intel platform kernel just return when update irte while it only prints a warning on AMD. Also, this patch adjusts the order of enable() and set_gsi_routes() in unmask(), which should do no harm. Signed-off-by: Yi Wang <wang.yi59@zte.com.cn>		2022-03-10 09:27:50 +01:00
..
api	openapi: Mark ReceiveMigrationData.receiver_url as required	2022-02-24 09:17:22 +01:00
acpi.rs	vmm: tdx: Pass ACPI tables through the HOB	2022-01-20 16:50:55 +00:00
clone3.rs	vmm: notify virtio-console of pty resizes	2021-09-14 15:43:25 +01:00
config.rs	vmm: Implement GDB event handler to enable --gdb flag	2022-02-23 11:16:09 +00:00
cpu.rs	vmm: Implement GDB event handler to enable --gdb flag	2022-02-23 11:16:09 +00:00
device_manager.rs	arch: do not hardcode MMIO region length in MmioDeviceInfo	2022-03-04 15:21:48 +08:00
device_tree.rs	pci, vmm: Update DeviceNode to store PciBdf instead of u32	2022-02-16 11:57:23 +00:00
gdb.rs	vmm: Implement GDB event handler to enable --gdb flag	2022-02-23 11:16:09 +00:00
interrupt.rs	vmm: interrupt: fix msi mask irq causing kernel panic on AMD	2022-03-10 09:27:50 +01:00
lib.rs	vmm: Implement GDB event handler to enable --gdb flag	2022-02-23 11:16:09 +00:00
memory_manager.rs	memory_manager: drop unneeded clippy suppressions	2022-01-18 17:23:27 -08:00
migration.rs	vmm: Split VM config and VM state for snapshot/restore	2022-02-08 15:06:49 +00:00
pci_segment.rs	vmm: Rename PCI_MMIO_CONFIG_SIZE and move it to arch	2021-12-06 09:29:49 +00:00
seccomp_filters.rs	seccomp: Add ioctls to seccomp filter for guest debug	2022-02-23 11:16:09 +00:00
serial_buffer.rs	vmm: Refactor serial buffer to allow flush on PTY when writable	2021-09-27 14:18:21 +01:00
serial_manager.rs	vmm: Refactor serial buffer to allow flush on PTY when writable	2021-09-27 14:18:21 +01:00
sigwinch_listener.rs	vmm: Fix panic in SIGWINCH listener thread when no seccomp filter set	2021-11-16 14:28:02 +00:00
vm.rs	arch: do not hardcode MMIO region length in MmioDeviceInfo	2022-03-04 15:21:48 +08:00