Pull KVM updates from Paolo Bonzini:
"Small release overall.
x86:
- miscellaneous fixes
- AVIC support (local APIC virtualization, AMD version)
s390:
- polling for interrupts after a VCPU goes to halted state is now
enabled for s390
- use hardware provided information about facility bits that do not
need any hypervisor activity, and other fixes for cpu models and
facilities
- improve perf output
- floating interrupt controller improvements.
MIPS:
- miscellaneous fixes
PPC:
- bugfixes only
ARM:
- 16K page size support
- generic firmware probing layer for timer and GIC
Christoffer Dall (KVM-ARM maintainer) says:
"There are a few changes in this pull request touching things
outside KVM, but they should all carry the necessary acks and it
made the merge process much easier to do it this way."
though actually the irqchip maintainers' acks didn't make it into the
patches. Marc Zyngier, who is both irqchip and KVM-ARM maintainer,
later acked at http://mid.gmane.org/
573351D1.
4060303@arm.com ('more
formally and for documentation purposes')"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (82 commits)
KVM: MTRR: remove MSR 0x2f8
KVM: x86: make hwapic_isr_update and hwapic_irr_update look the same
svm: Manage vcpu load/unload when enable AVIC
svm: Do not intercept CR8 when enable AVIC
svm: Do not expose x2APIC when enable AVIC
KVM: x86: Introducing kvm_x86_ops.apicv_post_state_restore
svm: Add VMEXIT handlers for AVIC
svm: Add interrupt injection via AVIC
KVM: x86: Detect and Initialize AVIC support
svm: Introduce new AVIC VMCB registers
KVM: split kvm_vcpu_wake_up from kvm_vcpu_kick
KVM: x86: Introducing kvm_x86_ops VCPU blocking/unblocking hooks
KVM: x86: Introducing kvm_x86_ops VM init/destroy hooks
KVM: x86: Rename kvm_apic_get_reg to kvm_lapic_get_reg
KVM: x86: Misc LAPIC changes to expose helper functions
KVM: shrink halt polling even more for invalid wakeups
KVM: s390: set halt polling to 80 microseconds
KVM: halt_polling: provide a way to qualify wakeups during poll
KVM: PPC: Book3S HV: Re-enable XICS fast path for irqfd-generated interrupts
kvm: Conditionally register IRQ bypass consumer
...
#define HCR_INT_OVERRIDE (HCR_FMO | HCR_IMO)
#define HCR_HOST_VHE_FLAGS (HCR_RW | HCR_TGE | HCR_E2H)
-/* Hyp System Control Register (SCTLR_EL2) bits */
-#define SCTLR_EL2_EE (1 << 25)
-#define SCTLR_EL2_WXN (1 << 19)
-#define SCTLR_EL2_I (1 << 12)
-#define SCTLR_EL2_SA (1 << 3)
-#define SCTLR_EL2_C (1 << 2)
-#define SCTLR_EL2_A (1 << 1)
-#define SCTLR_EL2_M 1
-#define SCTLR_EL2_FLAGS (SCTLR_EL2_M | SCTLR_EL2_A | SCTLR_EL2_C | \
- SCTLR_EL2_SA | SCTLR_EL2_I)
-
/* TCR_EL2 Registers bits */
- #define TCR_EL2_RES1 ((1 << 31) | (1 << 23))
- #define TCR_EL2_TBI (1 << 20)
- #define TCR_EL2_PS (7 << 16)
- #define TCR_EL2_PS_40B (2 << 16)
- #define TCR_EL2_TG0 (1 << 14)
- #define TCR_EL2_SH0 (3 << 12)
- #define TCR_EL2_ORGN0 (3 << 10)
- #define TCR_EL2_IRGN0 (3 << 8)
- #define TCR_EL2_T0SZ 0x3f
- #define TCR_EL2_MASK (TCR_EL2_TG0 | TCR_EL2_SH0 | \
- TCR_EL2_ORGN0 | TCR_EL2_IRGN0 | TCR_EL2_T0SZ)
+ #define TCR_EL2_RES1 ((1 << 31) | (1 << 23))
+ #define TCR_EL2_TBI (1 << 20)
+ #define TCR_EL2_PS_SHIFT 16
+ #define TCR_EL2_PS_MASK (7 << TCR_EL2_PS_SHIFT)
+ #define TCR_EL2_PS_40B (2 << TCR_EL2_PS_SHIFT)
+ #define TCR_EL2_TG0_MASK TCR_TG0_MASK
+ #define TCR_EL2_SH0_MASK TCR_SH0_MASK
+ #define TCR_EL2_ORGN0_MASK TCR_ORGN0_MASK
+ #define TCR_EL2_IRGN0_MASK TCR_IRGN0_MASK
+ #define TCR_EL2_T0SZ_MASK 0x3f
+ #define TCR_EL2_MASK (TCR_EL2_TG0_MASK | TCR_EL2_SH0_MASK | \
+ TCR_EL2_ORGN0_MASK | TCR_EL2_IRGN0_MASK | TCR_EL2_T0SZ_MASK)
/* VTCR_EL2 Registers bits */
#define VTCR_EL2_RES1 (1 << 31)
#define pmd_wrprotect(pmd) pte_pmd(pte_wrprotect(pmd_pte(pmd)))
#define pmd_mkold(pmd) pte_pmd(pte_mkold(pmd_pte(pmd)))
#define pmd_mkwrite(pmd) pte_pmd(pte_mkwrite(pmd_pte(pmd)))
-#define pmd_mkclean(pmd) pte_pmd(pte_mkclean(pmd_pte(pmd)))
+#define pmd_mkclean(pmd) pte_pmd(pte_mkclean(pmd_pte(pmd)))
#define pmd_mkdirty(pmd) pte_pmd(pte_mkdirty(pmd_pte(pmd)))
#define pmd_mkyoung(pmd) pte_pmd(pte_mkyoung(pmd_pte(pmd)))
-#define pmd_mknotpresent(pmd) (__pmd(pmd_val(pmd) & ~PMD_TYPE_MASK))
+#define pmd_mknotpresent(pmd) (__pmd(pmd_val(pmd) & ~PMD_SECT_VALID))
+ #define pmd_thp_or_huge(pmd) (pmd_huge(pmd) || pmd_trans_huge(pmd))
+
#define __HAVE_ARCH_PMD_WRITE
#define pmd_write(pmd) pte_write(pmd_pte(pmd))
#include <linux/slab.h>
#include <linux/irqchip.h>
+ #include <linux/irqchip/arm-gic-common.h>
#include <linux/irqchip/arm-gic-v3.h>
+#include <linux/irqchip/irq-partition-percpu.h>
#include <asm/cputype.h>
#include <asm/exception.h>
return 0;
}
- static void gic_populate_ppi_partitions(struct device_node *gic_node)
+static int get_cpu_number(struct device_node *dn)
+{
+ const __be32 *cell;
+ u64 hwid;
+ int i;
+
+ cell = of_get_property(dn, "reg", NULL);
+ if (!cell)
+ return -1;
+
+ hwid = of_read_number(cell, of_n_addr_cells(dn));
+
+ /*
+ * Non affinity bits must be set to 0 in the DT
+ */
+ if (hwid & ~MPIDR_HWID_BITMASK)
+ return -1;
+
+ for (i = 0; i < num_possible_cpus(); i++)
+ if (cpu_logical_map(i) == hwid)
+ return i;
+
+ return -1;
+}
+
+/* Create all possible partitions at boot time */
++static void __init gic_populate_ppi_partitions(struct device_node *gic_node)
+{
+ struct device_node *parts_node, *child_part;
+ int part_idx = 0, i;
+ int nr_parts;
+ struct partition_affinity *parts;
+
+ parts_node = of_find_node_by_name(gic_node, "ppi-partitions");
+ if (!parts_node)
+ return;
+
+ nr_parts = of_get_child_count(parts_node);
+
+ if (!nr_parts)
+ return;
+
+ parts = kzalloc(sizeof(*parts) * nr_parts, GFP_KERNEL);
+ if (WARN_ON(!parts))
+ return;
+
+ for_each_child_of_node(parts_node, child_part) {
+ struct partition_affinity *part;
+ int n;
+
+ part = &parts[part_idx];
+
+ part->partition_id = of_node_to_fwnode(child_part);
+
+ pr_info("GIC: PPI partition %s[%d] { ",
+ child_part->name, part_idx);
+
+ n = of_property_count_elems_of_size(child_part, "affinity",
+ sizeof(u32));
+ WARN_ON(n <= 0);
+
+ for (i = 0; i < n; i++) {
+ int err, cpu;
+ u32 cpu_phandle;
+ struct device_node *cpu_node;
+
+ err = of_property_read_u32_index(child_part, "affinity",
+ i, &cpu_phandle);
+ if (WARN_ON(err))
+ continue;
+
+ cpu_node = of_find_node_by_phandle(cpu_phandle);
+ if (WARN_ON(!cpu_node))
+ continue;
+
+ cpu = get_cpu_number(cpu_node);
+ if (WARN_ON(cpu == -1))
+ continue;
+
+ pr_cont("%s[%d] ", cpu_node->full_name, cpu);
+
+ cpumask_set_cpu(cpu, &part->mask);
+ }
+
+ pr_cont("}\n");
+ part_idx++;
+ }
+
+ for (i = 0; i < 16; i++) {
+ unsigned int irq;
+ struct partition_desc *desc;
+ struct irq_fwspec ppi_fwspec = {
+ .fwnode = gic_data.fwnode,
+ .param_count = 3,
+ .param = {
+ [0] = 1,
+ [1] = i,
+ [2] = IRQ_TYPE_NONE,
+ },
+ };
+
+ irq = irq_create_fwspec_mapping(&ppi_fwspec);
+ if (WARN_ON(!irq))
+ continue;
+ desc = partition_create_desc(gic_data.fwnode, parts, nr_parts,
+ irq, &partition_domain_ops);
+ if (WARN_ON(!desc))
+ continue;
+
+ gic_data.ppi_descs[i] = desc;
+ }
+}
+
+ static void __init gic_of_setup_kvm_info(struct device_node *node)
+ {
+ int ret;
+ struct resource r;
+ u32 gicv_idx;
+
+ gic_v3_kvm_info.type = GIC_V3;
+
+ gic_v3_kvm_info.maint_irq = irq_of_parse_and_map(node, 0);
+ if (!gic_v3_kvm_info.maint_irq)
+ return;
+
+ if (of_property_read_u32(node, "#redistributor-regions",
+ &gicv_idx))
+ gicv_idx = 1;
+
+ gicv_idx += 3; /* Also skip GICD, GICC, GICH */
+ ret = of_address_to_resource(node, gicv_idx, &r);
+ if (!ret)
+ gic_v3_kvm_info.vcpu = r;
+
+ gic_set_kvm_info(&gic_v3_kvm_info);
+ }
+
static int __init gic_of_init(struct device_node *node, struct device_node *parent)
{
void __iomem *dist_base;
err = gic_init_bases(dist_base, rdist_regs, nr_redist_regions,
redist_stride, &node->fwnode);
- if (!err) {
- gic_of_setup_kvm_info(node);
- return 0;
- }
+ if (err)
+ goto out_unmap_rdist;
+
+ gic_populate_ppi_partitions(node);
++ gic_of_setup_kvm_info(node);
+ return 0;
out_unmap_rdist:
for (i = 0; i < nr_redist_regions; i++)
return true;
}
- static int gic_of_setup(struct gic_chip_data *gic, struct device_node *node)
++static int __init gic_of_setup(struct gic_chip_data *gic, struct device_node *node)
+{
+ if (!gic || !node)
+ return -EINVAL;
+
+ gic->raw_dist_base = of_iomap(node, 0);
+ if (WARN(!gic->raw_dist_base, "unable to map gic dist registers\n"))
+ goto error;
+
+ gic->raw_cpu_base = of_iomap(node, 1);
+ if (WARN(!gic->raw_cpu_base, "unable to map gic cpu registers\n"))
+ goto error;
+
+ if (of_property_read_u32(node, "cpu-offset", &gic->percpu_offset))
+ gic->percpu_offset = 0;
+
+ return 0;
+
+error:
+ gic_teardown(gic);
+
+ return -ENOMEM;
+}
+
+ static void __init gic_of_setup_kvm_info(struct device_node *node)
+ {
+ int ret;
+ struct resource *vctrl_res = &gic_v2_kvm_info.vctrl;
+ struct resource *vcpu_res = &gic_v2_kvm_info.vcpu;
+
+ gic_v2_kvm_info.type = GIC_V2;
+
+ gic_v2_kvm_info.maint_irq = irq_of_parse_and_map(node, 0);
+ if (!gic_v2_kvm_info.maint_irq)
+ return;
+
+ ret = of_address_to_resource(node, 2, vctrl_res);
+ if (ret)
+ return;
+
+ ret = of_address_to_resource(node, 3, vcpu_res);
+ if (ret)
+ return;
+
+ gic_set_kvm_info(&gic_v2_kvm_info);
+ }
+
int __init
gic_of_init(struct device_node *node, struct device_node *parent)
{
* Disable split EOI/Deactivate if either HYP is not available
* or the CPU interface is too small.
*/
- if (gic_cnt == 0 && !gic_check_eoimode(node, &cpu_base))
+ if (gic_cnt == 0 && !gic_check_eoimode(node, &gic->raw_cpu_base))
static_key_slow_dec(&supports_deactivate);
- if (of_property_read_u32(node, "cpu-offset", &percpu_offset))
- percpu_offset = 0;
+ ret = __gic_init_bases(gic, -1, &node->fwnode);
+ if (ret) {
+ gic_teardown(gic);
+ return ret;
+ }
- if (!gic_cnt)
- __gic_init_bases(gic_cnt, -1, dist_base, cpu_base, percpu_offset,
- &node->fwnode);
+ if (!gic_cnt) {
gic_init_physaddr(node);
+ gic_of_setup_kvm_info(node);
+ }
if (parent) {
irq = irq_of_parse_and_map(node, 0);
return -EINVAL;
}
- gic->raw_cpu_base = ioremap(cpu_phy_base, ACPI_GIC_CPU_IF_MEM_SIZE);
- cpu_base = ioremap(acpi_data.cpu_phys_base, ACPI_GIC_CPU_IF_MEM_SIZE);
- if (!cpu_base) {
++ gic->raw_cpu_base = ioremap(acpi_data.cpu_phys_base, ACPI_GIC_CPU_IF_MEM_SIZE);
+ if (!gic->raw_cpu_base) {
pr_err("Unable to map GICC registers\n");
return -ENOMEM;
}
projects / cascardo / linux.git / commitdiff