| Message ID | 20210412152236.1975-2-jgross@suse.com (mailing list archive) |
|---|---|
| State | Superseded |
| Headers | show |
| Series | tools/libs: add missing support of linear p2m_list, cleanup | expand |
On Mon, Apr 12, 2021 at 05:22:31PM +0200, Juergen Gross wrote: > When setting the highest pfn used in the guest, don't subtract 1 from > the value read from the shared_info data. The value read already is > the correct pfn. > > Fixes: 91e204d37f449 ("libxc: try to find last used pfn when migrating") > Signed-off-by: Juergen Gross <jgross@suse.com> Acked-by: Wei Liu <wl@xen.org>
diff --git a/tools/libs/guest/xg_sr_save_x86_pv.c b/tools/libs/guest/xg_sr_save_x86_pv.c index 4964f1f7b8..dae7f2817f 100644 --- a/tools/libs/guest/xg_sr_save_x86_pv.c +++ b/tools/libs/guest/xg_sr_save_x86_pv.c @@ -468,7 +468,7 @@ static int map_p2m(struct xc_sr_context *ctx) ctx->x86.pv.p2m_generation = ~0ULL; ctx->x86.pv.max_pfn = GET_FIELD(ctx->x86.pv.shinfo, arch.max_pfn, - ctx->x86.pv.width) - 1; + ctx->x86.pv.width); p2m_cr3 = GET_FIELD(ctx->x86.pv.shinfo, arch.p2m_cr3, ctx->x86.pv.width); return p2m_cr3 ? map_p2m_list(ctx, p2m_cr3) : map_p2m_tree(ctx);
When setting the highest pfn used in the guest, don't subtract 1 from the value read from the shared_info data. The value read already is the correct pfn. Fixes: 91e204d37f449 ("libxc: try to find last used pfn when migrating") Signed-off-by: Juergen Gross <jgross@suse.com> --- This is a backport candidate --- tools/libs/guest/xg_sr_save_x86_pv.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)