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drivers/interrupt_controller: Make VT-D remap generic and handle flags

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This will not only be used by MSI remapping but by all relevant
interrupts.

Fix also IRTE settings:
- handle x2apic for destination id
- destination mode is always logical (as for IOAPIC)

Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
This commit is contained in:
Tomasz Bursztyka 2020-12-16 11:10:21 +01:00 • committed by Anas Nashif
commit 1a1bc0d242
4 changed files with 23 additions and 8 deletions
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14
drivers/interrupt_controller/intc_intel_vtd.c
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@ -19,6 +19,7 @@
#include <arch/x86/intel_vtd.h>
#include <drivers/interrupt_controller/intel_vtd.h>
#include <drivers/interrupt_controller/ioapic.h>
#include "intc_intel_vtd.h"
@ -76,14 +77,15 @@ static uint32_t vtd_ictl_remap_msi(const struct device *dev,
}
static int vtd_ictl_remap(const struct device *dev,
msi_vector_t *vector)
uint8_t irte_idx,
uint16_t vector,
uint32_t flags)
{
struct vtd_ictl_data *data = dev->data;
uint8_t irte_idx = vector->arch.irte;
memset(&data->irte[irte_idx], 0, sizeof(struct vtd_irte));
data->irte[irte_idx].l.vector = vector->arch.vector;
data->irte[irte_idx].l.vector = vector;
if (IS_ENABLED(CONFIG_X2APIC)) {
data->irte[irte_idx].l.dst_id = arch_curr_cpu()->id;
@ -91,6 +93,12 @@ static int vtd_ictl_remap(const struct device *dev,
data->irte[irte_idx].l.dst_id = arch_curr_cpu()->id << 8;
}
data->irte[irte_idx].l.trigger_mode =
(flags & IOAPIC_TRIGGER_MASK) >> 15;
data->irte[irte_idx].l.delivery_mode =
(flags & IOAPIC_DELIVERY_MODE_MASK) >> 8;
data->irte[irte_idx].l.dst_mode = 1;
data->irte[irte_idx].l.redirection_hint = 1;
data->irte[irte_idx].l.present = 1;
return 0;