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| author | Sunil Muthuswamy <[email protected]> | 2021-03-23 18:47:16 +0000 |
|---|---|---|
| committer | Wei Liu <[email protected]> | 2021-03-24 11:35:24 +0000 |
| commit | 6dc2a774cb4fdb524b7eb0b8db74198a1b4815ea (patch) | |
| tree | 537cf3fba82d5d7e438f930a428b564c8d6b6e8e /lib/dynamic_debug.c | |
| parent | x86/hyperv: Fix unused variable 'hi' warning in hv_apic_read (diff) | |
| download | kernel-6dc2a774cb4fdb524b7eb0b8db74198a1b4815ea.tar.gz kernel-6dc2a774cb4fdb524b7eb0b8db74198a1b4815ea.zip | |
x86/Hyper-V: Support for free page reporting
Linux has support for free page reporting now (36e66c554b5c) for
virtualized environment. On Hyper-V when virtually backed VMs are
configured, Hyper-V will advertise cold memory discard capability,
when supported. This patch adds the support to hook into the free
page reporting infrastructure and leverage the Hyper-V cold memory
discard hint hypercall to report/free these pages back to the host.
Signed-off-by: Sunil Muthuswamy <[email protected]>
Tested-by: Matheus Castello <[email protected]>
Reviewed-by: Michael Kelley <[email protected]>
Tested-by: Nathan Chancellor <[email protected]>
Link: https://lore.kernel.org/r/SN4PR2101MB0880121FA4E2FEC67F35C1DCC0649@SN4PR2101MB0880.namprd21.prod.outlook.com
Signed-off-by: Wei Liu <[email protected]>
Diffstat (limited to 'lib/dynamic_debug.c')
0 files changed, 0 insertions, 0 deletions