[PATCH v3 16/35] x86/kvm: Use msi_msg shadow structs

David Woodhouse
2020-10-24T21:36:04Z

From: Thomas Gleixner <tglx@linutronix.de>

Use the bitfields in the x86 shadow structs instead of decomposing the
32bit value with macros.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: David Woodhouse <dwmw@amazon.co.uk>
---
arch/x86/kvm/irq_comm.c | 31 +++++++++++++------------------
1 file changed, 13 insertions(+), 18 deletions(-)

diff --git a/arch/x86/kvm/irq_comm.c b/arch/x86/kvm/irq_comm.c
index 4aa1c2e00e2a..8a4de3f12820 100644
--- a/arch/x86/kvm/irq_comm.c
+++ b/arch/x86/kvm/irq_comm.c
@@ -16,8 +16,6 @@

#include <trace/events/kvm.h>

-#include <asm/msidef.h>
-
#include "irq.h"

#include "ioapic.h"
@@ -104,22 +102,19 @@ int kvm_irq_delivery_to_apic(struct kvm *kvm, struct kvm_lapic *src,
void kvm_set_msi_irq(struct kvm *kvm, struct kvm_kernel_irq_routing_entry *e,
struct kvm_lapic_irq *irq)
{
- trace_kvm_msi_set_irq(e->msi.address_lo | (kvm->arch.x2apic_format ?
- (u64)e->msi.address_hi << 32 : 0),
- e->msi.data);
-
- irq->dest_id = (e->msi.address_lo &
- MSI_ADDR_DEST_ID_MASK) >> MSI_ADDR_DEST_ID_SHIFT;
- if (kvm->arch.x2apic_format)
- irq->dest_id |= MSI_ADDR_EXT_DEST_ID(e->msi.address_hi);
- irq->vector = (e->msi.data &
- MSI_DATA_VECTOR_MASK) >> MSI_DATA_VECTOR_SHIFT;
- irq->dest_mode = kvm_lapic_irq_dest_mode(
- !!((1 << MSI_ADDR_DEST_MODE_SHIFT) & e->msi.address_lo));
- irq->trig_mode = (1 << MSI_DATA_TRIGGER_SHIFT) & e->msi.data;
- irq->delivery_mode = e->msi.data & 0x700;
- irq->msi_redir_hint = ((e->msi.address_lo
- & MSI_ADDR_REDIRECTION_LOWPRI) > 0);
+ struct msi_msg msg = { .address_lo = e->msi.address_lo,
+ .address_hi = e->msi.address_hi,
+ .data = e->msi.data };
+
+ trace_kvm_msi_set_irq(msg.address_lo | (kvm->arch.x2apic_format ?
+ (u64)msg.address_hi << 32 : 0), msg.data);
+
+ irq->dest_id = x86_msi_msg_get_destid(&msg, kvm->arch.x2apic_format);
+ irq->vector = msg.arch_data.vector;
+ irq->dest_mode = kvm_lapic_irq_dest_mode(msg.arch_addr_lo.dest_mode_logical);
+ irq->trig_mode = msg.arch_data.is_level;
+ irq->delivery_mode = msg.arch_data.delivery_mode << 8;
+ irq->msi_redir_hint = msg.arch_addr_lo.redirect_hint;
irq->level = 1;
irq->shorthand = APIC_DEST_NOSHORT;