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micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="HjLfbADq9Cg4aQs8" Content-Disposition: inline In-Reply-To: --HjLfbADq9Cg4aQs8 Content-Type: text/plain; protected-headers=v1; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Date: Mon, 2 Mar 2026 12:11:23 +0100 From: Marek =?utf-8?Q?Marczykowski-G=C3=B3recki?= To: Jan Beulich Cc: =?utf-8?B?SsO8cmdlbiBHcm/Dnw==?= , xen-devel , Boris Ostrovsky , Andrew Morton , "David Hildenbrand (Arm)" Subject: Re: Excluding init_on_free for pages for initial balloon down (Xen) On Mon, Mar 02, 2026 at 12:05:57PM +0100, Jan Beulich wrote: > On 02.03.2026 12:01, Marek Marczykowski-G=C3=B3recki wrote: > > It isn't just reducing double-zeroing to single zeroing. It's about > > avoiding zeroing such pages at all. If a domU is started with > > populate-on-demand, many (sometimes most) of its pages are populated in > > EPT. >=20 > ITYM "unpopulated in EPT"? Yes... --=20 Best Regards, Marek Marczykowski-G=C3=B3recki Invisible Things Lab --HjLfbADq9Cg4aQs8 Content-Type: application/pgp-signature; name=signature.asc -----BEGIN PGP SIGNATURE----- iQEzBAEBCAAdFiEEhrpukzGPukRmQqkK24/THMrX1ywFAmmlcFwACgkQ24/THMrX 1yzqNQf/TDwbpTaA2dHntBbwtaFb8BD+V+ciJ4Bn9CsM4jA/bjqWVqOEYDdFvW+8 ZxOxWonelMsJWD6jOAVNzjV63CXrxuKC0aQ80VBC717XO2JwvVjHcGSoEY839BxM bWOY48dSNAwG3xZT8S9H8OUgG5oc9e/UXg0nwiSugHDZaWL0mnzZyfwmQbYfxsp4 4st6ObeKWMvx8UvRI/KnN7oM1DxF1A1pUnLKrVVJEPzL/doCo7FvBFGIki0zv0vY yLepZGyLqDaA+nwDa5OnQDPJI8t4DasiIbxznhU8g0o+HKnRjzs+q9WMSzAOh6In l5rIM+BA7s/E8evluHaYs/oVgK+bsQ== =lnOg -----END PGP SIGNATURE----- --HjLfbADq9Cg4aQs8--