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xen/efi: make Xen PV EFI clock optional

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The present implementation is only for x86.  Other architectures need
adjustments for querying presence of EFI.

Xen's EFI support is also quite troublesome on non-x86.  This is being
slowly remedied, but until in better shape the EFI clock functionality
should be disabled.

Reviewed by: royger
Differential Revision: https://reviews.freebsd.org/D31065
This commit is contained in:
Elliott Mitchell 2021-02-18 20:19:20 -08:00 committed by Roger Pau Monné
parent 28a78d860e
commit b2c50bb934
4 changed files with 4 additions and 1 deletions
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1
sys/amd64/conf/GENERIC
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@ -383,6 +383,7 @@ device hyperv # HyperV drivers
# NOTE: XENHVM depends on xenpci and xentimer.
# They must be added or removed together.
options XENHVM # Xen HVM kernel infrastructure
device xenefi # Xen EFI timer device
device xenpci # Xen HVM Hypervisor services driver
device xentimer # Xen x86 PV timer device

1
sys/amd64/conf/MINIMAL
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@ -147,6 +147,7 @@ device kvm_clock # KVM paravirtual clock driver
# NOTE: XENHVM depends on xenpci and xentimer.
# They must be added or removed together.
options XENHVM # Xen HVM kernel infrastructure
device xenefi # Xen EFI timer device
device xenpci # Xen HVM Hypervisor services driver
device xentimer # Xen x86 PV timer device

1
sys/amd64/conf/NOTES
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@ -505,6 +505,7 @@ device hvhid # HyperV HID device
# Xen HVM Guest Optimizations
options XENHVM # Xen HVM kernel infrastructure
device xenefi # Xen EFI timer device
device xenpci # Xen HVM Hypervisor services driver
device xentimer # Xen x86 PV timer device

2
sys/conf/files
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@ -3486,7 +3486,7 @@ dev/xen/bus/xenpv.c optional xenhvm
dev/xen/console/xen_console.c optional xenhvm
dev/xen/control/control.c optional xenhvm
dev/xen/cpu/xen_acpi_cpu.c optional xenhvm
dev/xen/efi/pvefi.c optional xenhvm efirt
dev/xen/efi/pvefi.c optional xenhvm xenefi efirt
dev/xen/grant_table/grant_table.c optional xenhvm
dev/xen/netback/netback.c optional xenhvm
dev/xen/netfront/netfront.c optional xenhvm