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89 lines
3.8 KiB
89 lines
3.8 KiB
9 months ago
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From e670722b9a6460d41497688d820d5a9a9b51d8e9 Mon Sep 17 00:00:00 2001
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From: Gavin Shan <gshan@redhat.com>
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Date: Tue, 9 Jan 2024 11:36:42 +1000
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Subject: [PATCH 001/101] hw/arm/virt: Add properties to disable high memory
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regions
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RH-Author: Gavin Shan <gshan@redhat.com>
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RH-MergeRequest: 210: hw/arm/virt: Add properties to disable high memory regions
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RH-Jira: RHEL-19738
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RH-Acked-by: Miroslav Rezanina <mrezanin@redhat.com>
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RH-Acked-by: Eric Auger <eric.auger@redhat.com>
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RH-Commit: [1/1] 4097ba5133a67126e30b84202cb40df4e019c5f4
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Upstream: RHEL-only
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Brew: https://brewweb.engineering.redhat.com/brew/taskinfo?taskID=57927352
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There are 3 high memory regions for GICv3 or GICv4 redistributor, PCI
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ECAM and PCI MMIO. Each of them has a property introduced by upstream
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commit 6a48c64eec ("hw/arm/virt: Add properties to disable high memory
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regions") so that the corresponding high memory region can be disabled.
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It's notable that another property ("compact-highmem") introduced by
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upstream commit f40408a9fe ("hw/arm/virt: Add 'compact-highmem' property")
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so that the compact high memory region layout during assignment can be
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disabled, compatible to the old machine types. However, we don't have
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the compatible issue since the compact high memory region layout is
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always kept as disabled until RHEL9.2.0 machine type and onwards.
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Expose those 3 properties: "highmem-redists", "highmem-ecam" and
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"highmem-mmio". The property "compact-highmem" is kept as hidden.
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Signed-off-by: Gavin Shan <gshan@redhat.com>
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---
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hw/arm/virt.c | 24 +++++++++++++++++++++++-
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1 file changed, 23 insertions(+), 1 deletion(-)
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diff --git a/hw/arm/virt.c b/hw/arm/virt.c
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index 5cab00b4cd..60f117f0d2 100644
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--- a/hw/arm/virt.c
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+++ b/hw/arm/virt.c
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@@ -2456,6 +2456,7 @@ static void virt_set_compact_highmem(Object *obj, bool value, Error **errp)
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vms->highmem_compact = value;
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}
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+#endif /* disabled for RHEL */
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static bool virt_get_highmem_redists(Object *obj, Error **errp)
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{
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@@ -2498,7 +2499,6 @@ static void virt_set_highmem_mmio(Object *obj, bool value, Error **errp)
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vms->highmem_mmio = value;
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}
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-#endif /* disabled for RHEL */
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static bool virt_get_its(Object *obj, Error **errp)
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{
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@@ -3521,6 +3521,28 @@ static void rhel_machine_class_init(ObjectClass *oc, void *data)
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"Set on/off to enable/disable using "
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"physical address space above 32 bits");
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+ object_class_property_add_bool(oc, "highmem-redists",
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+ virt_get_highmem_redists,
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+ virt_set_highmem_redists);
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+ object_class_property_set_description(oc, "highmem-redists",
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+ "Set on/off to enable/disable high "
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+ "memory region for GICv3 or GICv4 "
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+ "redistributor");
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+
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+ object_class_property_add_bool(oc, "highmem-ecam",
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+ virt_get_highmem_ecam,
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+ virt_set_highmem_ecam);
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+ object_class_property_set_description(oc, "highmem-ecam",
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+ "Set on/off to enable/disable high "
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+ "memory region for PCI ECAM");
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+
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+ object_class_property_add_bool(oc, "highmem-mmio",
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+ virt_get_highmem_mmio,
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+ virt_set_highmem_mmio);
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+ object_class_property_set_description(oc, "highmem-mmio",
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+ "Set on/off to enable/disable high "
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+ "memory region for PCI MMIO");
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+
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object_class_property_add_str(oc, "gic-version", virt_get_gic_version,
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virt_set_gic_version);
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object_class_property_set_description(oc, "gic-version",
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--
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2.39.3
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