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| author | Jon Doron <arilou@gmail.com> | 2022-02-16 12:24:59 +0200 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2022-04-06 14:31:56 +0200 |
| commit | 73d24074078a2cefb5305047e3bf50b73daa3f98 (patch) | |
| tree | 79af4dadb4de590faf3baf6b689d9d682038f5b3 /docs | |
| parent | ccbdf5e81b502b238748ab64366bba5bf4c056d3 (diff) | |
| download | qemu-73d24074078a2cefb5305047e3bf50b73daa3f98.zip qemu-73d24074078a2cefb5305047e3bf50b73daa3f98.tar.gz qemu-73d24074078a2cefb5305047e3bf50b73daa3f98.tar.bz2 | |
hyperv: Add support to process syndbg commands
SynDbg commands can come from two different flows:
1. Hypercalls, in this mode the data being sent is fully
encapsulated network packets.
2. SynDbg specific MSRs, in this mode only the data that needs to be
transfered is passed.
Signed-off-by: Jon Doron <arilou@gmail.com>
Reviewed-by: Emanuele Giuseppe Esposito <eesposit@redhat.com>
Message-Id: <20220216102500.692781-4-arilou@gmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'docs')
| -rw-r--r-- | docs/hyperv.txt | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/docs/hyperv.txt b/docs/hyperv.txt index 0417c18..33588a0 100644 --- a/docs/hyperv.txt +++ b/docs/hyperv.txt @@ -225,6 +225,21 @@ default (WS2016). Note: hv-version-id-* are not enlightenments and thus don't enable Hyper-V identification when specified without any other enlightenments. +3.21. hv-syndbg +=============== +Enables Hyper-V synthetic debugger interface, this is a special interface used +by Windows Kernel debugger to send the packets through, rather than sending +them via serial/network . +When enabled, this enlightenment provides additional communication facilities +to the guest: SynDbg messages. +This new communication is used by Windows Kernel debugger rather than sending +packets via serial/network, adding significant performance boost over the other +comm channels. +This enlightenment requires a VMBus device (-device vmbus-bridge,irq=15) +and the follow enlightenments to work: +hv-relaxed,hv_time,hv-vapic,hv-vpindex,hv-synic,hv-runtime,hv-stimer + + 4. Supplementary features ========================= |