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authorEric Auger <eric.auger@redhat.com>2018-05-22 09:55:08 +0200
committerMarc Zyngier <marc.zyngier@arm.com>2018-05-25 12:29:26 +0100
commitdbd9733ab6742dfb7d4f6c49e7d412d4e792d8be (patch)
tree1864d271a760667d958b2d54a925b64f42aec7c0 /include/kvm
parentd6c77bd19c0f755dc603bf26a0bbc2d44dcd8625 (diff)
downloadlinux-dbd9733ab6742dfb7d4f6c49e7d412d4e792d8be.tar.bz2
KVM: arm/arm64: Replace the single rdist region by a list
At the moment KVM supports a single rdist region. We want to support several separate rdist regions so let's introduce a list of them. This patch currently only cares about a single entry in this list as the functionality to register several redist regions is not yet there. So this only translates the existing code into something functionally similar using that new data struct. The redistributor region handle is stored in the vgic_cpu structure to allow later computation of the TYPER last bit. Signed-off-by: Eric Auger <eric.auger@redhat.com> Reviewed-by: Christoffer Dall <christoffer.dall@arm.com> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Diffstat (limited to 'include/kvm')
-rw-r--r--include/kvm/arm_vgic.h14
1 files changed, 10 insertions, 4 deletions
diff --git a/include/kvm/arm_vgic.h b/include/kvm/arm_vgic.h
index e7efe12a81bd..90e489f685ae 100644
--- a/include/kvm/arm_vgic.h
+++ b/include/kvm/arm_vgic.h
@@ -201,6 +201,14 @@ struct vgic_its {
struct vgic_state_iter;
+struct vgic_redist_region {
+ u32 index;
+ gpa_t base;
+ u32 count; /* number of redistributors or 0 if single region */
+ u32 free_index; /* index of the next free redistributor */
+ struct list_head list;
+};
+
struct vgic_dist {
bool in_kernel;
bool ready;
@@ -220,10 +228,7 @@ struct vgic_dist {
/* either a GICv2 CPU interface */
gpa_t vgic_cpu_base;
/* or a number of GICv3 redistributor regions */
- struct {
- gpa_t vgic_redist_base;
- gpa_t vgic_redist_free_offset;
- };
+ struct list_head rd_regions;
};
/* distributor enabled */
@@ -311,6 +316,7 @@ struct vgic_cpu {
*/
struct vgic_io_device rd_iodev;
struct vgic_io_device sgi_iodev;
+ struct vgic_redist_region *rdreg;
/* Contains the attributes and gpa of the LPI pending tables. */
u64 pendbaser;