diff options
Diffstat (limited to 'arch/x86/kernel/jailhouse.c')
| -rw-r--r-- | arch/x86/kernel/jailhouse.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/arch/x86/kernel/jailhouse.c b/arch/x86/kernel/jailhouse.c index 2b55672ca05f..01d5b06a42bc 100644 --- a/arch/x86/kernel/jailhouse.c +++ b/arch/x86/kernel/jailhouse.c @@ -15,6 +15,7 @@ #include <asm/cpu.h> #include <asm/hypervisor.h> #include <asm/i8259.h> +#include <asm/irqdomain.h> #include <asm/reboot.h> #include <asm/setup.h> @@ -52,6 +53,15 @@ static unsigned long jailhouse_get_tsc(void) static void __init jailhouse_get_smp_config(unsigned int early) { + struct ioapic_domain_cfg ioapic_cfg = { + .type = IOAPIC_DOMAIN_STRICT, + .ops = &mp_ioapic_irqdomain_ops, + }; + struct mpc_intsrc mp_irq = { + .type = MP_INTSRC, + .irqtype = mp_INT, + .irqflag = MP_IRQPOL_ACTIVE_HIGH | MP_IRQTRIG_EDGE, + }; unsigned int cpu; if (x2apic_enabled()) { @@ -77,6 +87,17 @@ static void __init jailhouse_get_smp_config(unsigned int early) } smp_found_config = 1; + + if (setup_data.standard_ioapic) { + mp_register_ioapic(0, 0xfec00000, gsi_top, &ioapic_cfg); + + /* Register 1:1 mapping for legacy UART IRQs 3 and 4 */ + mp_irq.srcbusirq = mp_irq.dstirq = 3; + mp_save_irq(&mp_irq); + + mp_irq.srcbusirq = mp_irq.dstirq = 4; + mp_save_irq(&mp_irq); + } } static void jailhouse_no_restart(void) |