[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [xen staging-4.18] libxl: Disable relocating memory for qemu-xen in stubdomain too
commit 489c2b9ba173376e978c0ef3de416a2f09452e85 Author: Marek Marczykowski-Górecki <marmarek@xxxxxxxxxxxxxxxxxxxxxx> AuthorDate: Tue Feb 27 13:57:07 2024 +0100 Commit: Jan Beulich <jbeulich@xxxxxxxx> CommitDate: Tue Feb 27 13:57:07 2024 +0100 libxl: Disable relocating memory for qemu-xen in stubdomain too According to comments (and experiments) qemu-xen cannot handle memory reolcation done by hvmloader. The code was already disabled when running qemu-xen in dom0 (see libxl__spawn_local_dm()), but it was missed when adding qemu-xen support to stubdomain. Adjust libxl__spawn_stub_dm() to be consistent in this regard. Reported-by: Neowutran <xen@xxxxxxxxxxxxx> Signed-off-by: Marek Marczykowski-Górecki <marmarek@xxxxxxxxxxxxxxxxxxxxxx> Reviewed-by: Jason Andryuk <jandryuk@xxxxxxxxx> Acked-by: Anthony PERARD <anthony.perard@xxxxxxxxxx> master commit: 97883aa269f6745a6ded232be3a855abb1297e0d master date: 2024-02-22 11:48:22 +0100 --- tools/libs/light/libxl_dm.c | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/tools/libs/light/libxl_dm.c b/tools/libs/light/libxl_dm.c index 14b593110f..ed620a9d8e 100644 --- a/tools/libs/light/libxl_dm.c +++ b/tools/libs/light/libxl_dm.c @@ -2432,6 +2432,16 @@ void libxl__spawn_stub_dm(libxl__egc *egc, libxl__stub_dm_spawn_state *sdss) "%s", libxl_bios_type_to_string(guest_config->b_info.u.hvm.bios)); } + /* Disable relocating memory to make the MMIO hole larger + * unless we're running qemu-traditional and vNUMA is not + * configured. */ + libxl__xs_printf(gc, XBT_NULL, + libxl__sprintf(gc, "%s/hvmloader/allow-memory-relocate", + libxl__xs_get_dompath(gc, guest_domid)), + "%d", + guest_config->b_info.device_model_version + == LIBXL_DEVICE_MODEL_VERSION_QEMU_XEN_TRADITIONAL && + !libxl__vnuma_configured(&guest_config->b_info)); ret = xc_domain_set_target(ctx->xch, dm_domid, guest_domid); if (ret<0) { LOGED(ERROR, guest_domid, "setting target domain %d -> %d", -- generated by git-patchbot for /home/xen/git/xen.git#staging-4.18
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